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Cross-site Scripting in Gogs

Moderate severity GitHub Reviewed Published May 5, 2022 in gogs/gogs • Updated Jan 27, 2023

Package

gomod gogs.io/gogs (Go)

Affected versions

< 0.12.7

Patched versions

0.12.7

Description

Impact

The malicious user is able to upload a crafted SVG file as the issue attachment to archive XSS. All installations allow uploading SVG (text/xml) files as issue attachments (non-default) are affected.

Patches

Correctly setting the Content Security Policy for the serving endpoint. Users should upgrade to 0.12.7 or the latest 0.13.0+dev.

Workarounds

Disable uploading SVG files (text/xml) as issue attachments.

References

https://huntr.dev/bounties/34a12146-3a5d-4efc-a0f8-7a3ae04b198d/

For more information

If you have any questions or comments about this advisory, please post on gogs/gogs#6919.

References

@unknwon unknwon published to gogs/gogs May 5, 2022
Published by the National Vulnerability Database May 5, 2022
Published to the GitHub Advisory Database May 24, 2022
Reviewed May 24, 2022
Last updated Jan 27, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.059%
(26th percentile)

Weaknesses

CVE ID

CVE-2022-1464

GHSA ID

GHSA-ff28-f46g-r9g8

Source code

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