GHSA-5cmv-3rc4-7279

Source

https://github.com/advisories/GHSA-5cmv-3rc4-7279

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-5cmv-3rc4-7279/GHSA-5cmv-3rc4-7279.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-5cmv-3rc4-7279

Aliases

Published

2026-05-07T00:04:26Z

Modified

2026-07-13T07:26:44Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator

Summary

Weblate vulnerable to XSS via crafted Markdown

Details

Impact

The Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes.

Patches

https://github.com/WeblateOrg/weblate/pull/19259

Workarounds

Even though the attacker might be able to inject code into the HTML, the Weblate's strict CSP should mitigate the risks.

Acknowlegement

Michal Čihař has identified and fixed this vulnerability.

Database specific

{
    "cwe_ids": [
        "CWE-79",
        "CWE-80"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-07T00:04:26Z",
    "nvd_published_at": "2026-05-07T15:16:10Z",
    "severity": "MODERATE"
}

References

Affected packages

PyPI / weblate

Package

Name: weblate; View open source insights on deps.dev
Purl: pkg:pypi/weblate

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

5.17.1

Affected versions

1.*

1.9

2.*

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.10

2.10.1

2.11

2.12

2.13

2.13.1

2.14

2.14.1

2.15

2.16

2.17

2.17.1

2.18

2.19

2.19.1

2.20

3.*

3.0

3.0.1

3.1

3.1.1

3.2

3.2.1

3.2.2

3.3

3.4

3.5

3.5.1

3.6

3.6.1

3.7

3.7.1

3.8

3.9

3.9.1

3.10

3.10.1

3.10.2

3.10.3

3.11

3.11.1

3.11.2

3.11.3

4.*

4.0

4.0.1

4.0.2

4.0.3

4.0.4

4.1

4.1.1

4.2

4.2.1

4.2.2

4.3

4.3.1

4.3.2

4.4

4.4.1

4.4.2

4.5

4.5.1

4.5.2

4.5.3

4.6

4.6.1

4.6.2

4.7

4.7.1

4.7.2

4.8

4.8.1

4.9

4.9.1

4.10

4.10.1

4.11

4.11.1

4.11.2

4.12

4.12.1

4.12.2

4.13

4.13.1

4.14

4.14.1

4.14.2

4.15

4.15.1

4.15.2

4.16

4.16.1

4.16.2

4.16.3

4.16.4

4.17

4.18

4.18.1

4.18.2

5.*

5.0

5.0.1

5.0.2

5.1

5.1.1

5.2

5.2.1

5.3

5.3.1

5.4

5.4.1

5.4.2

5.4.3

5.5

5.5.2

5.5.3

5.5.4

5.5.5

5.6

5.6.1

5.6.2

5.7

5.7.1

5.7.2

5.8.1

5.8.2

5.8.3

5.8.4

5.9.1

5.9.2

5.10

5.10.1

5.10.2

5.10.3

5.10.4

5.11

5.11.1

5.11.3

5.11.4

5.12.1

5.12.2

5.13

5.13.1

5.13.2

5.13.3

5.14

5.14.1

5.14.2

5.14.3

5.15

5.15.1

5.15.2

5.16

5.16.1

5.16.2

5.17

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-5cmv-3rc4-7279/GHSA-5cmv-3rc4-7279.json"