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CVE-2026-35543

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via SVG content (with animate attributes) in an e-mail message. This may lead to information disclosure or access-control bypass.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bae807c0ea6669eda8d6c7a9e3f0f8d00fb7463a443adfeb592f3b11cc28cf41
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:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-669","description":"CWE-669 Incorrect Resource Transfer Between Spheres","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"url":"https://github.com/roundcube/roundcubemail/commit/1a63e01542bff42aaa71c00c4c279a09ef31f20c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/references/6
{"url":"https://github.com/roundcube/roundcubemail/commit/39471343ee081ce1d31696c456a2c163462daae3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/references/4
{"url":"https://github.com/roundcube/roundcubemail/commit/82ab5eca7b332fce7a174b2b987f0957a66377cd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /containers/cna/references/2
{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /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:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /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:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /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:d62d1a3d967bb26ddfb9655e027626cfe732a1320d6599107022f00faf2b4363 · sha256:5447534b489661f5… · /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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