CVE Explorer

CVE-2026-27458

LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom feed endpoint for lists (/lists/feed). An authenticated user can inject a CDATA-breaking payload into a list description that escapes the XML CDATA section, injects a native SVG element into the Atom XML document, and executes arbitrary JavaScript directly in the browser when the feed URL is visited. No RSS reader or additional rendering context is

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4f0f01eb276389f671d0f8c881fe0fb632d945ebe88cbd82cac85a552f2ba9c6

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"LinkAce","vendor":"Kovah","versions":[{"status":"affected","version":"< 2.4.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:240dd3786c4512b3c5c875ea7b022f1ac0a4efc9c70551495320e75956f127b3 · sha256:9f0d53c7c946684e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:240dd3786c4512b3c5c875ea7b022f1ac0a4efc9c70551495320e75956f127b3 · sha256:9f0d53c7c946684e… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-80","description":"CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:240dd3786c4512b3c5c875ea7b022f1ac0a4efc9c70551495320e75956f127b3 · sha256:9f0d53c7c946684e… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/Kovah/LinkAce/commit/eb5ba2abe05177ffa678baac0aa3f9c48b47d2f0","tags":["x_refsource_MISC"],"url":"https://github.com/Kovah/LinkAce/commit/eb5ba2abe05177ffa678baac0aa3f9c48b47d2f0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:240dd3786c4512b3c5c875ea7b022f1ac0a4efc9c70551495320e75956f127b3 · sha256:9f0d53c7c946684e… · /containers/cna/references/1

{"name":"https://github.com/Kovah/LinkAce/security/advisories/GHSA-2r9p-95xj-p583","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Kovah/LinkAce/security/advisories/GHSA-2r9p-95xj-p583"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:240dd3786c4512b3c5c875ea7b022f1ac0a4efc9c70551495320e75956f127b3 · sha256:9f0d53c7c946684e… · /containers/cna/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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