CVE-2019-12363 json
An CSRF issue was discovered in the JN-Jones MyBB-2FA plugin through 2014-11-05 for MyBB.
published 2019-07-11 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-3998
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
An CSRF issue was discovered in the JN-Jones MyBB-2FA plugin through 2014-11-05 for MyBB. An attacker can forge a request to an installed mybb2fa plugin to control its state via usercp.php?action=mybb2fa&do=deactivate (or usercp.php?action=mybb2fa&do=activate). A deactivate operation lowers the security of the targeted account by disabling two factor authentication.
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seekurity.com https://seekurity.com/blog/advisories/mybb-two-factor-authentication-extension-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
seekurity.com
/blog/advisories/mybb-two-factor-authentication-extension-vulnerabilities/
exploit, third-party-advisory
-
community.mybb.com
/thread-162369.html
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2019-12363
- NVD CVE-2019-12363
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