Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Liferay Portal and Liferay DXP are vulnerable to a CAPTCHA bypass in the com.liferay.captcha.impl package before version 4.0.17, which is fixed in 4.0.17. The source gives few details on how the bypass is triggered, but an attacker can get past the CAPTCHA check and then run scripts in the Gogo shell. Upgrade com.liferay.captcha.impl to version 4.0.17 or later.
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 |
|---|---|---|---|---|
| 6.9 | Medium | 4.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N | CNA (Liferay) |
- CISA KEV Not listed.
- EPSS 0.0019, the 8th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:09 UTC First seen by agentprime
- 31 Oct 2026, 15:09 UTC Confirmed by OSV