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Back to active CVEs
Medium · CVSS 5.3CVE-2026-112784

OpenCATS before 0.10.0 Missing Authorization via ajax/testEmailSettings.phpCVE-2026-112784

Answer in brief

CVE-2026-112784 records a Medium severity (CVSS 5.3) vulnerability in OpenCATS before 0.10.0 Missing Authorization via ajax/testEmailSettings.php. The current sources do not mark it as known exploited. The current feed maps opencats/OpenCATS (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps opencats/OpenCATS (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
opencats/OpenCATSgeneric>=0 <0.10.00.10.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for opencats/OpenCATS.
  2. 2Review the reported fix. Update opencats/OpenCATS to 0.10.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/testEmailSettings.php that allows any authenticated user to send mail through the configured SMTP relay. Read-level users can supply testEmailAddress and fromAddress parameters to send the fixed test message to any recipient with a spoofed From address.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • OpenCATS before 0.10.0 Missing Authorization via Activity AJAX EndpointsSame opencats/opencats package
  • OpenCATS before 0.10.0 Missing Authorization in Saved-List AJAX EndpointsSame opencats/opencats package
  • OpenCATS before 0.10.0 Missing Authorization via Import Revert ActionSame opencats/opencats package
  • OpenCATS before 0.10.0 Missing Authorization in Reports Module EEO ReportsSame opencats/opencats package
  • OpenCATS before 0.10.0 Missing Authorization in Calendar editEvent/deleteEventSame opencats/opencats package
  • Missing Authorization in extension "sgalinski Cookie Consent" (sg_cookie_optin)Also CWE-862

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Oct 20, 2026
References
5 linked sources
Open source record