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CVE-2026-32986

Textpattern CMS version 4.9.0 contains a second-order cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting improper sanitization of user-supplied input in Atom feed XML elements. Attackers can embed unescaped payloads in parameters such as category that are reflected into Atom fields like and , which execute as JavaScript when feed readers or CMS aggregators consume the feed and insert content into the DOM using unsafe methods.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:828c38f10eae8f8bb99ddce79ae5441e605c0dcdeab8cdc623e0b456bded63fc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpac…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/metrics/1/cvssV3_1
cwe · 2 assertions

{"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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/problemTypes/0/descriptions/0

{"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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Textpattern CMS","vendor":"Textpattern","versions":[{"status":"affected","version":"4.9.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/problemTypes/0/descriptions/0
{"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:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"Packet Storm listing (Textpattern 4.9.0 Second-Order XSS via Atom Feed Injection)","tags":["exploit"],"url":"https://packetstorm.news/files/id/216241/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/references/0
{"name":"Vendor site","tags":["product"],"url":"https://textpattern.com/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:eafeeeb05fcf0aef323b61b0b07002549af56cae49bff04b4184bc7d8c4a3ffd · sha256:7a34776edd1fedf0… · /containers/cna/references/1

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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