CVE-2026-120190
PostyBirb Plus Submission Description Editor DescriptionInput.tsx cross site scripting
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulDBFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulDBFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulDBAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| PostyBirb Plus n/a |
3.1.0 (affected) 3.1.1 (affected) 3.1.2 (affected) 3.1.3 (affected) 3.1.4 (affected) 3.1.5 (affected) 3.1.6 (affected) 3.1.7 (affected) 3.1.8 (affected) 3.1.9 (affected) 3.1.10 (affected) 3.1.11 (affected) 3.1.12 (affected) 3.1.13 (affected) 3.1.14 (affected) 3.1.15 (affected) 3.1.16 (affected) 3.1.17 (affected) 3.1.18 (affected) 3.1.19 (affected) 3.1.20 (affected) 3.1.21 (affected) 3.1.22 (affected) 3.1.23 (affected) 3.1.24 (affected) 3.1.25 (affected) 3.1.26 (affected) 3.1.27 (affected) 3.1.28 (affected) 3.1.29 (affected) 3.1.30 (affected) 3.1.31 (affected) 3.1.32 (affected) 3.1.33 (affected) 3.1.34 (affected) 3.1.35 (affected) 3.1.36 (affected) 3.1.37 (affected) 3.1.38 (affected) 3.1.39 (affected) 3.1.40 (affected) 3.1.41 (affected) 3.1.42 (affected) 3.1.43 (affected) 3.1.44 (affected) 3.1.45 (affected) 3.1.46 (affected) 3.1.47 (affected) 3.1.48 (affected) 3.1.49 (affected) 3.1.50 (affected) 3.1.51 (affected) 3.1.52 (affected) 3.1.53 (affected) 3.1.54 (affected) 3.1.55 (affected) 3.1.56 (affected) 3.1.57 (affected) 3.1.58 (affected) 3.1.59 (affected) 3.1.60 (affected) 3.1.61 (affected) 3.1.62 (affected) 3.1.63 (affected) 3.1.64 (affected) 3.1.65 (affected) 3.1.66 (affected) 3.1.67 (affected) 3.1.68 (affected) 3.1.69 (affected) 3.1.70 (affected) 3.1.71 (affected) 3.1.72 (affected) 3.1.73 (affected) 3.1.74 (affected) 3.1.75 (affected) 3.1.76 (unaffected) |
CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.1 medium |
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 | CNA: VulDB |
| 3.1 / 3.5 low |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C | CNA: VulDB |
| 3.0 / 3.5 low |
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C | CNA: VulDB |
| 2.0 / 4.0 medium |
AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C | CNA: VulDB |
| 4.0 / 2.0 low |
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 | NVD: [email protected] |
| 3.1 / 3.5 low |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N | NVD: [email protected] |
| 2.0 / 4.0 medium |
AV:N/AC:L/Au:S/C:N/I:P/A:N | NVD: [email protected] |
Exploit evidence
- https://github.com/user-attachments/files/32685547/report.md
exploit · CNA: VulDB
References
- https://vuldb.com/vuln/429529CNA: VulDB · vdb-entry
- https://vuldb.com/vuln/429529/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-120190CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1027356CNA: VulDB · third-party-advisory
- https://github.com/mvdicarlo/postybirb-plus/issues/504CNA: VulDB · issue-tracking
- https://github.com/mvdicarlo/postybirb-plus/pull/506CNA: VulDB · issue-tracking, patch
- https://github.com/user-attachments/files/32685547/report.mdCNA: VulDB · exploit
- https://github.com/mvdicarlo/postybirb-plus/commit/6b11c2345ad98ae59fd5404a9f1024eb1d10c8a4CNA: VulDB · patch
- https://github.com/mvdicarlo/postybirb-plus/releases/tag/v3.1.76CNA: VulDB · patch
- https://github.com/mvdicarlo/postybirb-plus/commit/6b11c2345ad98ae59fd5404a9f1024eb1d10c8a4[email protected]
- https://github.com/mvdicarlo/postybirb-plus/issues/504[email protected]
- https://github.com/mvdicarlo/postybirb-plus/pull/506[email protected]
- https://github.com/mvdicarlo/postybirb-plus/releases/tag/v3.1.76[email protected]
- https://github.com/user-attachments/files/32685547/report.md[email protected]
- https://vuldb.com/cve/CVE-2026-120190[email protected]
- https://vuldb.com/submit/1027356[email protected]
- https://vuldb.com/vuln/429529[email protected]
- https://vuldb.com/vuln/429529/cti[email protected]
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