CVE-2026-124434

EUVD-2026-119566
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
getgravgrav
1.1.0 ≤
𝑥
< 1.3.2
CNA
Common Weakness Enumeration
References
https://github.com/getgrav/grav/security/advisories/GHSA-jq4h-4q3q-hr32
https://www.vulncheck.com/advisories/grav-lightbox-gallery-1.1.0-before-1.3.2-file-read-via-shortcode-media-actions