CVE-2025-8550

Name: CVE-2025-8550
Creator: NVD / NIST
Published: 2025-08-05T07:15:36.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2025-8550 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability was found in atjiu pybbs up to 6.0.0. It has been declared as problematic. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS 4.0

1.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.58%

43.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pybbs Project	Pybbs	<= 6.0.0

References

https://github.com/atjiu/pybbs/commit/2fe4a51afbce0068c291bc1818bbc8f7f3b01a22Patch
https://github.com/atjiu/pybbs/issues/203Exploit, Issue Tracking
https://github.com/atjiu/pybbs/issues/203#issue-3256392964Exploit, Issue Tracking
https://github.com/atjiu/pybbs/issues/203#issuecomment-3134774288Issue Tracking
https://vuldb.com/?ctiid.318679Permissions Required, VDB Entry
https://vuldb.com/?id.318679Third Party Advisory, VDB Entry
https://vuldb.com/?submit.622194Third Party Advisory, VDB Entry

Timeline

Published: Aug 5, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-8550?

How severe is CVE-2025-8550?

CVE-2025-8550 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2025-8550?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-8550?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST