CVE-2026-120190: medium-severity vulnerability in PostyBirb Plus
PostyBirb Plus Submission Description Editor DescriptionInput.tsx cross site scripting
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.1epss 0.4%
A security flaw has been discovered in PostyBirb Plus up to 3.1.75. Affected by this vulnerability is an unknown functionality of the file ui/src/views/submissions/submission-forms/form-components/DescriptionInput.tsx of the component Submission Description Editor. The manipulation results in cross site scripting. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. Upgrading to version 3.1.76 addresses this issue. The patch is identified as 6b11c2345ad98ae59fd5404a9f1024eb1d10c8a4. It is advisable to upgrade the affected component.
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
Affected products
n/a · PostyBirb Pluspublic PoCs found — 1
cve_referencegithub.com/user-attachments/files/32685547/report.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/mvdicarlo/postybirb-plus/commit/6b11c2345ad98ae59fd5404a9f1024eb1d10c8a4https://github.com/mvdicarlo/postybirb-plus/issues/504https://github.com/mvdicarlo/postybirb-plus/pull/506https://github.com/mvdicarlo/postybirb-plus/releases/tag/v3.1.76https://github.com/user-attachments/files/32685547/report.mdhttps://vuldb.com/cve/CVE-2026-120190https://vuldb.com/submit/1027356https://vuldb.com/vuln/429529https://vuldb.com/vuln/429529/cti