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CVE-2026-40568

FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a stored cross-site scripting (XSS) vulnerability in the mailbox signature feature. The sanitization function `Helper::stripDangerousTags()` (`app/Misc/Helper.php:568`) uses an incomplete blocklist of only four HTML tags (`script`, `form`, `iframe`, `object`) and does not remove event handler attributes. When a mailbox signature is saved via `MailboxesController::updateSave()` (`app/Http/Controllers/Mail
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3b66bc04b38f5ea165d3c2b3fcbb046e054ea6c5482e73b7fbaeb5d1e512138c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

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:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /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:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"freescout","vendor":"freescout-help-desk","versions":[{"status":"affected","version":"< 1.8.213"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/metrics/0/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:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /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:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/freescout-help-desk/freescout/commit/1d83e1cffb0bf8d109625313530b36b0f5910b3f","tags":["x_refsource_MISC"],"url":"https://github.com/freescout-help-desk/freescout/commit/1d83e1cffb0bf8d109625313530b36b0f5910b3f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/references/1
{"name":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213","tags":["x_refsource_MISC"],"url":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w2f5-6wcv-677r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /containers/adp/0/references/0
{"name":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w2f5-6wcv-677r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w2f5-6wcv-677r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59fce1146409cf2d997d903e10c7254a5b39c98ada3259d420d67646f34df1b4 · sha256:266b36929dbd6d0f… · /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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