OPEXUS FOIAXpress Public Access Link (PAL) unauthenticated username enumeration
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-204.
Summary
OPEXUS FOIAXpress Public Access Link (PAL) version v11.1.0 allows an unauthenticated, remote attacker to query the /App/CreateRequest.aspx endpoint to check for the existence of valid usernames. There are no rate-limiting mechanisms in place.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA FOIAXpress Public Access Link (PAL) (OPEXUS) Fixed in 11.12.3.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OPEXUS FOIAXpress Public Access Link (PAL) 11.12.3.0
3 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2025-34578 OPEXUS FOIAXpress Public Access Link (PAL) state and territory list unauthorized modificationPriority MEDIUM 57
- TI-2025-34579 OPEXUS FOIAXpress Public Access Link (PAL) account-lockout and CAPTCHA protection bypassPriority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2025-54834
- 2026-10-03 Alias added: GHSA-989f-fh5x-8jw4
More OPEXUS Foiaxpress Public Access Link vulnerabilities
- TI-2024-35836 An issue in OPEXUS FOIAXPRESS PUBLIC ACCESS LINK v11.1.0 allows attackers to bypass… CVSS 3.1CRITICAL 9.1
- TI-2025-34578 OPEXUS FOIAXpress Public Access Link (PAL) state and territory list unauthorized modification CVSS 4.0MEDIUM 5.3
- TI-2025-36219 OPEXUS FOIAXpress PAL SQL injection CVSS 4.0CRITICAL 9.3
- TI-2025-34579 OPEXUS FOIAXpress Public Access Link (PAL) account-lockout and CAPTCHA protection bypass CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-54834 · CVE Program
- CVE-2025-54834 · NVD
- FIRST EPSS
- GHSA-989f-fh5x-8jw4 · GitHub Advisory Database · CC BY 4.0
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