Cyber Resilience

CVE-2025-8813

LowPublic PoC

Published: 10 August 2025

Published
10 August 2025
Modified
29 April 2026
KEV Added
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Patch
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CVSS Score v4 2.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 Score 0.0022 44.4th percentile
Risk Priority 4 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-8813 is a low-severity Open Redirect (CWE-601) vulnerability in Pybbs Project Pybbs. Its CVSS base score is 2.0 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Malicious Link (T1204.001); ranked at the 44.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A vulnerability has been found in atjiu pybbs up to 6.0.0 and classified as problematic. This vulnerability affects the function changeLanguage of the file src/main/java/co/yiiu/pybbs/controller/front/IndexController.java. The manipulation of the argument referer leads to open redirect. The attack can be initiated…

more

remotely. The exploit has been disclosed to the public and may be used. The patch is identified as edb14ff13e9e05394960ba46c3d31d844ff2deac. It is recommended to apply a patch to fix this issue.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1204.001 Malicious Link Execution
An adversary may rely upon a user clicking a malicious link in order to gain execution.
attack.mitre.org →
Why these techniques?

Open redirect vulnerability (CWE-601) in pybbs changeLanguage function allows manipulation of referer parameter to redirect users to attacker-controlled sites, facilitating user execution via malicious links (T1204.001) as explicitly mapped in the advisory.

Affected Assets

pybbs project
pybbs
≤ 6.0.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

References