Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Wwbn/avideo versions up to and including 29.0 have a CAPTCHA bypass. The CAPTCHA generator accepts a length parameter from the query string without limits, so an unauthenticated attacker can force a one-character answer. Failed guesses also do not invalidate the stored answer, so the attacker can brute-force it in about 33 requests per session and pass the check on registration, password recovery, and contact endpoints. No fix is listed; the source suggests clamping the length parameter and consuming the stored answer on every validation attempt.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0022, the 12th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:25 UTC First seen by agentprime
- 31 Oct 2026, 14:25 UTC Confirmed by OSV