All news with #privilege escalation tag

🛡️ WP Maps Pro, a popular WordPress plugin, contains a critical privilege escalation vulnerability (CVE-2026-8732) that allows unauthenticated attackers to create administrator accounts and take over sites. The flaw affects all versions up to 6.1.0 and was fixed in 6.1.1. Security researcher David Brown reported the issue, and Wordfence has observed active exploitation attempts. Site owners must update immediately to mitigate ongoing attacks.

🔒 A critical vulnerability in WP Maps Pro (CVE-2026-8732) allowed unauthenticated attackers to create administrator accounts via a flawed "temporary access" AJAX endpoint. Discovered by researcher David Brown, the issue affected versions 6.1.0 and older and relied on a publicly exposed nonce in frontend JavaScript, making protections ineffective. Defiant observed active exploitation attempts and blocked thousands of requests, and the vendor released WP Maps Pro 6.1.1 to address the flaw. Site owners are urged to update immediately to prevent account takeover and persistent backdoors.

🛡️ A local privilege escalation named CIFSwitch in the Linux kernel allows forging of CIFS authentication key descriptions and abuse of the kernel key request flow, enabling root privilege escalation. The vulnerability affects kernels paired with vulnerable cifs-utils (6.14+) on several major distributions when user namespaces and permissive SELinux/AppArmor settings are present. The attacker can trigger a privileged cifs.upcall to trust attacker-controlled fields, force a namespace switch, and load a malicious NSS module before privilege drop. A kernel patch validating cifs.spnego request origins is available upstream; mitigations include disabling the CIFS module, removing cifs-utils, and disabling unprivileged user namespaces.

🛡️ An unpatched zero-day in the Gogs self-hosted Git service allows authenticated non-admin users to gain remote code execution on Internet-facing instances. The flaw, an argument injection in the Merge() code path affecting Gogs 0.14.2 and 0.15.0+dev, can be exploited via malicious branch names during a rebase-merge operation. Researcher Jonah Burges reported the issue in March; maintainers have acknowledged but not yet patched it. Shadowserver and Shodan count thousands of exposed Gogs servers, many with default open registration enabled.

🛡️ Microsoft has criticized researchers for publicly disclosing six zero-day vulnerabilities before patches were available, calling such actions irresponsible and risky. The company said its security teams are working around the clock to investigate and mitigate issues including privilege escalation and bypass flaws in Defender and BitLocker. Microsoft urged adherence to industry-standard coordinated vulnerability disclosure (CVD) practices, typically allowing a 90-day embargo for patch development. It cautioned that uncoordinated releases can place proof-of-concept exploit code into malicious hands and undermines efforts to protect customers.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch a critical, actively exploited privilege escalation flaw in the LiteSpeed cPanel user-end plugin, tracked as CVE-2026-48172. LiteSpeed released urgent updates to fix the issue in the lsws.redisAble function and advised administrators to check logs and block suspicious IPs. CISA added the flaw to its known exploited vulnerabilities catalog and required patches by May 29 under BOD 22-01.

⚡ This week's recap covers supply-chain compromises, resurfacing legacy bugs, and security tools themselves being targeted. Key incidents include a poisoned Nx Console VS Code extension leading to a GitHub breach, new active exploitation of Microsoft Defender flaws, and a nine-year-old Linux kernel privilege bug. Teams face increasing targeted phishing and widespread botnet scanning, while organizations scramble to patch critical CVEs and secure exposed services.

🔐 A critical vulnerability, CVE-2026-48172 (CVSS 10.0), in the LiteSpeed User-End cPanel Plugin allows privilege escalation via the lsws.redisAble function, enabling arbitrary scripts to run as root. The flaw affects plugin versions 2.3 through 2.4.4 and is being actively exploited; LiteSpeed fixed it in v2.4.5 and later bundled releases. Administrators are urged to upgrade to cPanel plugin v2.4.7 (with WHM plugin v5.3.1.0) or uninstall the user-end plugin if immediate patching is not feasible.

🛡️ The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical SQL injection flaw in Drupal Core (CVE-2026-9082, CVSS 6.5) to its Known Exploited Vulnerabilities list after evidence of active exploitation. The vulnerability affects all supported Drupal Core versions and could enable privilege escalation and remote code execution via crafted requests using the database abstraction API. Patches were released across multiple 8.x–11.x branches, with manual patches required for Drupal 9.5 and 8.9.

🔒 Kaspersky researchers disclosed CVE-2026-25262, a BootROM-level flaw in Qualcomm’s Sahara/EDL implementation that enables arbitrary write operations during device recovery. The bug, a CWE-123 Write-What-Where condition in the ARM Primary Boot Loader, permits attackers with brief physical access via USB to upload and execute malicious code before the OS boots. Qualcomm confirmed the issue, issued a security bulletin, and pledged fixes for future silicon while advising mitigation steps for affected devices.

🔒 Microsoft released emergency fixes addressing two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws let local attackers escalate to system-level privileges or disrupt the anti-malware service, both of which aid malware persistence and control. CISA added CVE-2026-41091 and CVE-2026-45498 to its KEV catalog after in-the-wild exploitation was detected, and administrators are urged to update the Malware Protection Engine and Antimalware Platform to the specified versions immediately.

🔒 A nine‑year logic flaw in the Linux kernel's ptrace path (CVE‑2026‑46333) lets unprivileged local users read sensitive files on default Debian, Fedora and Ubuntu installations. Qualys TRU found the bug in __ptrace_may_access(), exploitable when a privileged process drops credentials and remains briefly reachable; pidfd_getfd() expanded the attack surface. Upstream patches and distro updates are available; mitigations include raising kernel.yama.ptrace_scope to 2.

🔒 Microsoft disclosed two Microsoft Defender vulnerabilities under active exploitation: CVE-2026-41091, a local privilege escalation rated 7.8 that can allow an attacker to gain SYSTEM privileges via improper link resolution, and CVE-2026-45498, a denial-of-service issue rated 4.0. Both are addressed in Defender Antimalware Platform versions 1.1.26040.8 and 4.18.26040.7. Systems with Defender disabled are not affected; updates are applied automatically through malware definitions and the Microsoft Malware Protection Engine.

🛡️ Microsoft released emergency updates on Wednesday to address two actively exploited Microsoft Defender zero-day vulnerabilities. The first, CVE-2026-41091, affects the Microsoft Malware Protection Engine and can be abused to achieve SYSTEM privileges via improper link resolution before file access. The second, CVE-2026-45498, impacts the Defender Antimalware Platform and may be used to trigger denial-of-service; Microsoft says updates should deploy automatically but advises administrators to verify platform and signature versions and confirm successful installation.

🔒 Qualys disclosed a nine-year-old Linux kernel vulnerability tracked as CVE-2026-46333 (ssh-keysign-pwn) that stems from the __ptrace_may_access() code path. The flaw can allow an unprivileged local user to disclose sensitive files such as /etc/shadow and SSH host private keys and to execute arbitrary commands as root on default installs of Debian, Fedora, and Ubuntu. A public proof-of-concept appeared after a kernel commit; vendors have issued patches and recommend raising kernel.yama.ptrace_scope to 2 as a temporary mitigation.

🛡️ Drupal issued emergency updates addressing a "highly critical" SQL injection flaw tracked as CVE-2026-9082 in its database abstraction API that can be exploited against sites using PostgreSQL, allowing information disclosure and in some cases privilege escalation or remote code execution. The vendor released patched builds for supported 11.x and 10.x branches and published manual patches for EOL versions. Upstream Symfony and Twig fixes are also included in recent releases.

🚨Drupal administrators must apply an emergency core update to address a “highly critical” SQL injection defect (CVE-2026-9082) that affects sites using PostgreSQL. The release also bundles upstream fixes for Symfony and Twig, so Drupal urges updates even for non-Postgres deployments. Supported branches 11.3, 11.2, 10.6 and 10.5 are patched, while end-of-life versions may receive unsupported best-effort patches. The flaw permits anonymous attackers to send crafted requests resulting in arbitrary SQL injection, information disclosure, and potential privilege escalation or remote code execution.

🔒 A public proof-of-concept (PoC) exploit has been released for the recently patched local privilege escalation flaw dubbed PinTheft, which targets an RDS zerocopy double-free in the Linux kernel. The issue can lead to a page-cache overwrite via io_uring fixed buffers and allow a local attacker to obtain a root shell. Exploitation requires the RDS kernel module, io_uring enabled, a readable SUID-root binary and x86_64 support, so the impact is limited in practice and Arch Linux defaults make it the most exposed. Administrators are advised to apply kernel updates or unload and blacklist the RDS modules as an interim mitigation.

🔒 Microsoft has issued a mitigation for a BitLocker bypass called YellowKey (CVE-2026-45585), after a public proof-of-concept appeared. The flaw lets specially crafted FsTx files placed on a USB drive or EFI partition trigger an unrestricted shell when WinRE boots, risking access to encrypted volumes on affected Windows 11 and Windows Server 2025 systems. Microsoft and researchers recommend removing autofstx.exe from the WinRE image and switching from TPM-only to TPM+PIN to block exploitation.

🔐 Proof-of-concept exploit code has been published for the recently patched Linux kernel vulnerability known as DirtyDecrypt (aka DirtyCBC), which enables local privilege escalation by bypassing copy-on-write protections in rxgk_decrypt_skb. The flaw (CVE-2026-31635) affects kernels built with CONFIG_RXGK, impacting distributions like Fedora, Arch and openSUSE Tumbleweed. In containerized environments, vulnerable worker nodes may enable pod escape and root compromise.