CVE-2025-13810: jsnjfz WebStack-Guns KaptchaController.java renderPicture path traversal

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-01 · updated 2026-10-18
Weakness: CWE-22

Description

A vulnerability was found in jsnjfz WebStack-Guns 1.0. This affects the function renderPicture of the file src/main/java/com/jsnjfz/manage/modular/system/controller/KaptchaController.java. Performing a manipulation results in path traversal. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

jsnjfz WebStack-Guns: 1.0

References

https://github.com/Xzzz111/exps/blob/main/archives/WebStack-Guns-PathTraversal-1/report.md
https://github.com/Xzzz111/exps/blob/main/archives/WebStack-Guns-PathTraversal-1/report.md#proof-of-concept
https://vuldb.com/?ctiid.333820
https://vuldb.com/?id.333820
https://vuldb.com/?submit.692080

Get alerted when CVE-2025-13810 or the next vulnerability affects your stack