Unauthenticated IDOR Enables Disclosure of Other Users’ last-known details
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2026.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
openEQUELLA, an open-source content management and learning platform, is affected. An unauthenticated attacker can exploit a missing access check on one of its API endpoints to retrieve other users' personal information, including usernames, names, and email addresses.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
In openEQUELLA before 2026.1, the GET /api/userquery/userinfobackup endpoint performs no authentication or authorisation check. An unauthenticated attacker who supplies another user's uniqueId can retrieve that user's stored personal details (username, first name, last name and email address) within the same institution.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Apereo Foundation openEQUELLA
From 2019.2 · fixed in 2026.1