CVE Explorer

CVE-2026-55890

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action (CVE-2026-42841) leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdown image style parameters that are written into the rendered img style attribute without sanitization. This issue is fixed in version 2.0.0-rc.9.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9d1a6899d3b5813edaa5e454aff264b9aacec9b9b106f36bf9546e821f55c4d2

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"grav","vendor":"getgrav","versions":[{"status":"affected","version":"< 2.0.0-rc.9"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/getgrav/grav/commit/24fd6cbc438e12310b126d1176e7d7601203a6f2","tags":["x_refsource_MISC"],"url":"https://github.com/getgrav/grav/commit/24fd6cbc438e12310b126d1176e7d7601203a6f2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/references/1

{"name":"https://github.com/getgrav/grav/releases/tag/2.0.0-rc.9","tags":["x_refsource_MISC"],"url":"https://github.com/getgrav/grav/releases/tag/2.0.0-rc.9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/references/2

{"name":"https://github.com/getgrav/grav/security/advisories/GHSA-pmf8-g7c8-7v54","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-pmf8-g7c8-7v54"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-pmf8-g7c8-7v54"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:fb2973c8521f0c17b78fc89ef484a6b8caf6dafd17d730d8447fe732ab1849ef · sha256:436be9f3b2373490… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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