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CVE-2026-32870

Kirby is an open-source content management system. Kirby's `Xml::value()` method has special handling for `<![CDATA[ ]]>` blocks. If the input value is already valid `CDATA`, it is not escaped a second time but allowed to pass through. However, prior to versions 4.9.0 and 5.4.0, it was possible to trick this check into allowing values that only contained a valid `CDATA` block but also contained other structured data outside of the `CDATA` block. This structured data would then also be allowed to
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5414fcfa33821612dbefd857c220ae2069ce2c64565989e42d188b4ea3a865a4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"kirby","vendor":"getkirby","versions":[{"status":"affected","version":"< 4.9.0"},{"status":"affected","version":">= 5.0.0, < 5.4.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-91","description":"CWE-91: XML Injection (aka Blind XPath Injection)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/getkirby/kirby/releases/tag/4.9.0","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/releases/tag/4.9.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /containers/cna/references/1
{"name":"https://github.com/getkirby/kirby/releases/tag/5.4.0","tags":["x_refsource_MISC"],"url":"https://github.com/getkirby/kirby/releases/tag/5.4.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /containers/cna/references/2
{"name":"https://github.com/getkirby/kirby/security/advisories/GHSA-9wfj-c55w-j9qr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getkirby/kirby/security/advisories/GHSA-9wfj-c55w-j9qr"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc14c616ee21b5b5b18b02162fb953c7c2cbb1db519fd8ab2f23bf69afe70c04 · sha256:2f704a89dddaca6f… · /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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