TI-2026-37916 Aliases CVE-2026-52807 GHSA-vcm5-gvmp-78mp

Gogs: DOM-based XSS via Milestone Name on New Issue Page

MEDIUM 55CWE-79Published 2026-06-24 · Updated 2026-06-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Gogs is an open source self-hosted Git service. Prior to 0.14.3, in new_form.tmpl, milestone names are rendered with Go's default auto-escaping ({{.Name}}), which converts < to < etc. This prevents direct HTML injection. However, when the browser renders the DOM, the text content of the element contains the decoded original payload. Semantic UI 2.4.2's dropdown component has preserveHTML: true as the default setting. When a user selects a dropdown item, the internal set.text() method calls jQuery's .html() with the item's text content. This re-parses the decoded text as HTML, creating the injected element and triggering the JavaScript event handler. An attacker can store an HTML/JavaScript payload in a milestone name, and when any user opens the New Issue page and interacts with the milestone dropdown, the payload executes in their browser via Semantic UI's preserveHTML behavior. This vulnerability is fixed in 0.14.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00483 41st percentileScored 2026-11-07

Fix Fixed gogs (gogs): 0.14.3gogs.io/gogs (Go): 0.14.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Gogs	gogs	before 0.14.3	0.14.3	Patch available	CNA
—	gogs.io/gogs (Go)	before 0.14.3	0.14.3	Patch available	GHSA-vcm5-gvmp-78mp

gogs VendorGogs Affected before 0.14.3 Fixed in 0.14.3 Patch available CNA
gogs.io/gogs (Go) Vendor— Affected before 0.14.3 Fixed in 0.14.3 Patch available GHSA-vcm5-gvmp-78mp

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:gogs:gogs::::::::	—	—	Gogs

cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:* Versions — — ·Gogs

Remediation

Fix · CNA gogs (gogs) Fixed in 0.14.3
Fix · GHSA-vcm5-gvmp-78mp gogs.io/gogs (Go) Fixed in 0.14.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-52807
2026-10-03 Alias added: GHSA-vcm5-gvmp-78mp

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-52807

Other 5

TI-2025-07419 File overwrite in file update API in Gogs KEVCVSS 4.0HIGH 8.7
TI-2022-01876 OS Command Injection in gogs/gogs CVSS 3.1CRITICAL 9.8
TI-2024-36988 Gogs has a Path Traversal in file update API CVSS 4.0HIGH 8.7
TI-2026-37922 Gogs: Path Traversal in organization name results in RCE through Git hooks CVSS 3.1CRITICAL 10.0
TI-2022-01744 Remote Command Execution in gogs/gogs CVSS 3.1CRITICAL 10.0
TI-2025-39562 Gogs's update .git/config file allows remote command execution CVSS 4.0CRITICAL 9.3

See all 75 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences