CVE-2025-7786: Gnuboard g6 Post Reply qa cross site scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-07-18 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability, which was classified as problematic, has been found in Gnuboard g6 up to 6.0.10. This issue affects some unknown processing of the file /bbs/scrap_popin_update/qa/ of the component Post Reply Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

gnuboard5: through 6.0.10

References

https://github.com/gnuboard/g6/issues/645
https://vuldb.com/?ctiid.316847
https://vuldb.com/?id.316847
https://vuldb.com/?submit.615735
https://github.com/gnuboard/g6/issues/645

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