Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-35539

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c1e1d7284e3f90b4a27a331e810587cc33c7e5392a101388f7dc2c066c473bf5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Webmail","vendor":"Roundcube","versions":[{"lessThan":"1.5.14","status":"affected","version":"0","versionType":"semver"},{"lessThan":"1.6.14","status":"affected","version":"1.6.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"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:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"url":"https://github.com/roundcube/roundcubemail/commit/10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/4
{"url":"https://github.com/roundcube/roundcubemail/commit/1b30edf5369668c92fe91dae3d52e477c808aa4f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/2
{"url":"https://github.com/roundcube/roundcubemail/commit/d742954ccbcdee7020f8f2e7c49ce0fca5a0efab"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/6
{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/5
{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/3
{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /containers/cna/references/1
{"url":"https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18cd667634407c125eac2f24d7dea6735c99f55d2f0bec4109fe6ffdcbe31951 · sha256:73462f3e62a77d79… · /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.

← Back to CVE Explorer