CVE Explorer

CVE-2026-35569

ApostropheCMS is an open-source Node.js content management system. Versions 4.28.0 and prior contain a stored cross-site scripting vulnerability in SEO-related fields (SEO Title and Meta Description), where user-controlled input is rendered without proper output encoding into HTML contexts including <title> tags, <meta> attributes, and JSON-LD structured data. An attacker can inject a payload such as "></title><script>alert(1)</script> to break out of the intended HTML context and execute arbitr

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a1ce1cc426b0fb0626b57f2ed52fabe8c9a5ee2937e055f364b1c343585bbda7

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/problemTypes/1/descriptions/0

{"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:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"apostrophe","vendor":"apostrophecms","versions":[{"status":"affected","version":"< 4.29.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/problemTypes/1/descriptions/0

{"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:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/Chittu13/cve-research/tree/main/CVE-2026-35569","tags":["x_refsource_MISC"],"url":"https://github.com/Chittu13/cve-research/tree/main/CVE-2026-35569"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/references/2

{"name":"https://github.com/apostrophecms/apostrophe/commit/0e57dd07a56ae1ba1e3af646ba026db4d0ab5bb3","tags":["x_refsource_MISC"],"url":"https://github.com/apostrophecms/apostrophe/commit/0e57dd07a56ae1ba1e3af646ba026db4d0ab5bb3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /containers/cna/references/1

{"name":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-855c-r2vq-c292","tags":["x_refsource_CONFIRM"],"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-855c-r2vq-c292"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ff0c3e601b6356dcc76d4c274275db5462800711dce9ab04cd94ca5a88e73aa · sha256:4ac93b56deda7c1f… · /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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