RCE in Atjiu Pybbs

CVE-2026-4495

A security flaw has been discovered in atjiu pybbs 6.0.0. This impacts the function create of the file src/main/java/co/yiiu/pybbs/controller/api/CommentApiController.java. The manipulation results in cross site scripting. It is possible t…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (12.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-4495?
CVE-2026-4495 is a low-severity vulnerability in Atjiu Pybbs, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-03-20.
How severe is CVE-2026-4495?
Low severity. CVSS v3 base score is 3.5 out of 10.