CVE-2026-12271 json
Tutor LMS < 3.9.13 - Subscriber+ Arbitrary Quiz Attempt Modification via IDOR
published 2026-07-13 3 mo ago modified 2026-07-13 3 mo ago also EUVD-2026-43287
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail result.
Patch / fix
- Unknown Tutor LMS 3.9.13
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/ca99ea35-4bf8-4dc8-a817-79fb9fa1c5bd/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
Affected products
- Unknown Tutor LMS
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/ca99ea35-4bf8-4dc8-a817-79fb9fa1c5bd/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-12271
- NVD CVE-2026-12271
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.