Vulnerability · Published Jul 31, 2025 · Assigned by cisa-cg
CVE-2025-54834OPEXUS FOIAXpress Public Access Link (PAL) unauthenticated username enumeration
Medium 5.3
In plain English
A medium-severity security flaw in FOIAXpress Public Access Link (PAL) from OPEXUS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 53.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OPEXUS | FOIAXpress Public Access Link (PAL) | 11.1.0 – before 11.12.3.0 |
Weakness: CWE-204 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N