CVE-2026-124434
Grav Lightbox Gallery 1.1.0 before 1.3.2 File Read via Shortcode Media Actions
Description
Grav Lightbox Gallery plugin 1.1.0 before 1.3.2 on Grav 2.x calls any medium method named in image, thumb or thumb_options shortcode values without core's allowed media action check. A page editor can chain addMetaFile with value, toYaml or toJson to read server-readable YAML files, such as account password hashes, 2FA secrets and API keys, into a publicly viewable page.
INFO
Published Date :
Nov. 8, 2026, 1:15 p.m.
Last Modified :
Nov. 8, 2026, 1:15 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update the Grav Lightbox Gallery plugin.
- Verify plugin version is 1.3.2 or higher.
- Review shortcode usage for sensitive data.
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CVE-2026-124434 vulnerability anywhere in the article.