Inefficient algorithmic complexity in musl libc's GB18030 4-byte decoder (iconv function in src/locale/iconv.c) affects versions up to 1.2.6 and allows local authenticated attackers to cause availability impact through resource exhaustion. The vulnerability requires local access and authenticated privileges but enables denial of service via algorithmic complexity exploitation. No public exploit code or active exploitation has been confirmed at time of analysis.
Open Redirect in Chamilo LMS versions prior to 1.11.38 and 2.0.0-RC.3 allows unauthenticated remote attackers to redirect authenticated administrators to arbitrary external URLs via a malicious redirect parameter on the session course edit page, while simultaneously leaking the id_session parameter to attacker-controlled servers. The vulnerability requires user interaction (UI:R) but affects confidentiality through session parameter disclosure and crosses trust boundaries (S:C), resulting in CVSS 4.7 with low real-world risk due to authentication and user-interaction requirements.
Local denial of service in systemd 258 through 259 allows unprivileged users to trigger an assertion failure by interacting with service units configured with Delegate=yes and no explicit User setting, causing the systemd daemon to crash. The vulnerability requires local access and specific unit configuration but poses moderate risk to system availability with a CVSS score of 4.7 and no active exploitation currently identified.
Microsoft Edge (Chromium-based) allows remote attackers to spoof visual elements through a low-complexity network-based attack requiring user interaction, potentially disclosing limited information to unauthenticated users. The vulnerability affects all versions of Microsoft Edge based on Chromium and carries a CVSS score of 4.3 with low confidentiality impact but no code execution or availability risk. A vendor-released patch is available.
Improper access control in UsersWP plugin for WordPress versions up to 1.2.58 allows authenticated subscribers and above to manipulate restricted user metadata fields via the upload_file_remove() AJAX handler, bypassing field-level permissions intended to restrict modifications to administrator-only fields. The vulnerability stems from insufficient validation of the $htmlvar parameter against allowed fields or admin-use restrictions, enabling attackers to clear or reset sensitive usermeta columns on their own user records.
Authenticated attackers with Contributor-level or higher access to WordPress sites using the Download Manager plugin (versions up to 3.3.51) can strip protection metadata from any media file, including those they do not own, by exploiting a missing capability check in the makeMediaPublic() and makeMediaPrivate() functions. This allows unauthorized modification of access restrictions, passwords, and private flags on media files, exposing admin-protected content via direct URLs. The vulnerability is non-critical (CVSS 4.3) but represents a privilege escalation and data integrity issue requiring authenticated access.
Vikunja's scoped API token enforcement for project background routes contains a method-confusion authorization bypass allowing tokens with only `projects.background` permission to delete project backgrounds despite lacking the `projects.background_delete` permission. This enables authenticated attackers to perform unintended destructive operations on projects they have update access to, weakening the permission model for narrowly scoped API tokens used in automation and third-party integrations. The vulnerability has a vendor-released patch available and is confirmed reproducible on the affected codebase.
Vikunja task authorization bypass in CalDAV allows authenticated users to read arbitrary task details from any project by knowing a task UID, bypassing REST API permission checks. The GetResource and GetResourcesByList CalDAV methods query tasks by UID without verifying the authenticated user has project access, enabling information disclosure of task titles, descriptions, due dates, and other metadata across organizational boundaries in multi-tenant deployments. Patch available in v2.3.0.
Vikunja API versions prior to 2.3.0 allow authenticated users to read any label metadata and creator information across projects via SQL operator precedence flaw in the hasAccessToLabel function. Any label attached to at least one task becomes readable to all authenticated users regardless of project access permissions, enabling cross-project information disclosure of label titles, descriptions, colors, and creator usernames. The vulnerability requires prior authentication (PR:L per CVSS vector) and carries low complexity attack surface with direct impact to confidentiality. No public exploit code beyond the proof-of-concept in the advisory has been identified, and vendor-released patch version 2.3.0 is available.
Cross-site request forgery in Aruba HiSpeed Cache WordPress plugin up to version 3.0.4 allows unauthenticated attackers to reset all plugin settings to defaults by tricking site administrators into clicking a malicious link, due to missing nonce verification on the ahsc_ajax_reset_options() function. The CVSS score of 4.3 reflects the low-impact integrity violation requiring user interaction, with no known public exploit code or confirmed active exploitation.
CalDAV output generator in Vikunja allows authenticated users to inject arbitrary iCalendar properties via CRLF characters in task titles, bypassing RFC 5545 TEXT value escaping requirements. An attacker with project write access can craft malicious task titles that break iCalendar property boundaries, enabling injection of fake ATTACH URLs, VALARM notifications, or ORGANIZER spoofing when other users sync via CalDAV. Patch available in version 2.3.0; requires user interaction (calendar sync) to trigger on other users' clients.
TREK collaborative travel planner versions before 2.7.2 serve uploaded user photos without authentication, allowing unauthenticated remote attackers to enumerate and access private photo collections through direct URL access. The vulnerability is restricted to information disclosure with low impact due to attack complexity constraints, though it exposes sensitive travel-related imagery that users expect to be private.
Step CA versions 0.24.0 through 0.30.0-rc2 suffer a denial-of-service vulnerability where an attacker can trigger an index out-of-bounds panic by sending a crafted TPM attestation key certificate with an empty Extended Key Usage extension during device-attest-01 ACME challenges. The vulnerability affects only deployments that have explicitly configured TPM device attestation; organizations using Step CA for standard certificate management are unaffected. While the CVSS score is low (3.7), the attack is unauthenticated and remotely triggerable, potentially causing service disruption in vulnerable configurations.
phpseclib's SSH2 packet authentication uses PHP's non-constant-time != operator to compare HMACs, enabling timing-based information disclosure attacks on SSH sessions. The vulnerability affects phpseclib versions prior to 1.0.28, 2.0.53, and 3.0.51. An unauthenticated remote attacker can exploit variable-time comparison behavior to infer valid HMAC values through precise timing measurements, potentially compromising the confidentiality of SSH communications. No public exploit code or active exploitation has been confirmed, but this is a cryptographic timing vulnerability with proven scalability via benchmarking.
OpenStack Keystone 14 through 29.x allows authenticated users with restricted application credentials to create EC2 credentials that inherit the parent user's full S3 permissions, bypassing role restrictions. This privilege escalation affects only deployments combining restricted application credentials with the EC2/S3 compatibility API (swift3/s3api), and requires valid authentication credentials and moderate attack complexity to exploit.
systemd-journald in systemd 259 allows local attackers to send ANSI escape sequences to terminals of arbitrary users via the logger utility when ForwardToWall=yes is enabled, enabling terminal manipulation and information disclosure attacks with low CVSS impact but realistic local access requirements.
Integer underflow in wolfSSL's ASN.1 certificate parser allows remote attackers to trigger information disclosure and potential memory access violations when processing malformed X.509 certificates with oversized Subject Alternative Name extensions. The vulnerability affects wolfSSL versions up to 5.9.0 but only impacts systems using the non-default original ASN.1 parsing implementation; no public exploit code or active exploitation has been identified at time of analysis.
OpenClaw before version 2026.3.22 allows policy bypass through unvalidated queued node actions, enabling attackers to execute unauthorized commands by exploiting stale allowlists or policy declarations that persist after policy changes. The vulnerability requires network access and high attack complexity but no authentication, resulting in integrity impact without exposing confidentiality or availability. No public exploit code or active exploitation has been confirmed.
Open redirect vulnerability in Chamilo LMS login endpoint allows unauthenticated remote attackers to redirect users to arbitrary external websites via the redirect parameter, affecting versions 1.11.0 through 2.0-beta.1. The vulnerability was patched in 2.0-beta.2 and subsequent releases. No public exploit code or active exploitation has been confirmed, but the attack requires no authentication or special complexity and could be weaponized for phishing campaigns.