RCE in Atjiu Pybbs

CVE-2025-8551

A vulnerability was found in atjiu pybbs up to 6.0.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /admin/comment/list. The manipulation of the argument Username leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22. It is recommended to apply a patch to fix this issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.3th 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)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-8551?
CVE-2025-8551 is a low-severity vulnerability in Atjiu Pybbs, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-08-05.
How severe is CVE-2025-8551?
Low severity. CVSS v3 base score is 3.5 out of 10.
Is CVE-2025-8551 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.