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CVE-2026-124434 Grav Lightbox Gallery 1.1.0 before 1.3.2 File Read via Shortcode Media Actions

7.1 highEPSS 0.3%

High (7.1) in getgrav grav. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.

On this page
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.

Severity

CVSS 4.0

7.1 high
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.1 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
EPSS
0.3% estimated probability of exploitation activity in the next 30 days; 23rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-12. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
Assigned by
VulnCheck (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
getgrav gravfrom 1.1.0 before 1.3.2

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-200 (59).

References

Check your stackJSON