CVE-2025-47943 – gogs.io/gogs

Package

Manager: go
Name: gogs.io/gogs
Vulnerable Version: >=0 <0.13.3-0.20250608224432-110117b2e5e5

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00046 pctl0.1351

Details

Gogs XSS allowed by stored call in PDF renderer ### Summary A stored XSS is present in Gogs which allows client-side Javascript code execution. ### Details Gogs Version: ``` docker images REPOSITORY TAG IMAGE ID CREATED SIZE gogs/gogs latest fe92583bc4fe 10 hours ago 99.3MB ``` Application version: `0.14.0+dev` Local setup using: ```bash # Pull image from Docker Hub. docker pull gogs/gogs # Create local directory for volume. sudo mkdir -p /var/gogs # Use `docker run` for the first time. docker run --name=gogs -p 10022:22 -p 10880:3000 -v /var/gogs:/data gogs/gogs ``` The vulnerability is caused by the usage of a vulnerable and outdated component: `pdfjs-1.4.20` under public/plugins/. Read more about this vulnerability at [codeanlabs - CVE-2024-4367](https://codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js/). ### PoC 1. Upload the Proof of Concept file hosted at https://codeanlabs.com/wp-content/uploads/2024/05/poc_generalized_CVE-2024-4367.pdf in a repository. 2. Click on the file to be previewed. ![poc](https://github.com/user-attachments/assets/5af1303e-8751-49c8-af2e-d0631dd18957) ### Credits Edoardo Ottavianelli

Metadata

Created: 2025-06-26T16:54:01Z
Modified: 2025-07-30T17:45:37Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/06/GHSA-xh32-cx6c-cp4v/GHSA-xh32-cx6c-cp4v.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-xh32-cx6c-cp4v
Finding: F425
Auto approve: 1