Vulnerability details
CVE-2026-76213
thorsten phpMyFAQ
phpMyFAQ before 4.1.7 2FA Brute-Force via Session-Scoped Throttle
CVSS 4.0
9.1Critical
Official description
phpMyFAQ before 4.1.7 contains a brute-force vulnerability in the two-factor authentication step where the failure counter is session-scoped and reset on each successful password re-authentication. Attackers with a valid password can bypass the five-attempt limit by obtaining a fresh session cookie and repeatedly re-authenticating to reset the counter, enabling unbounded TOTP code guessing.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.1Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| 7.4High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| thorsten | phpMyFAQ | v < 4.1.7 | CVEProject cvelistV5 (CNA) |
References and advisories
2
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-08-19
- Last updated
- 2026-08-19
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.44%
Probability of exploitation in 30 days
39.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-307Improper Restriction of Excessive Authentication Attempts