# CVE-2023-43770

Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.

- Page: https://www.vulneraibility.com/cve/CVE-2023-43770
- CVSS: 6.1
- Known exploited: yes, in CISA KEV since 2024-02-12; CISA due date 2024-03-04
- EPSS: 63.66% (percentile 99.2)
- Unvetted proof-of-concept code on GitHub: 3 GitHub proofs of concept (first 2023-09-27)
- CISA SSVC: exploitation active, automatable no, technical impact partial (assessed 2024-05-01)
- Weakness: CWE-79
- Published: 2023-09-22

## Affected versions

- roundcube: affected < 1.4.14; >= 1.5.0 and < 1.5.4; >= 1.6.0 and < 1.6.3; fixed in 1.4.14, 1.5.4, 1.6.3 (Bitnami advisory, via OSV)

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b
- [other] https://roundcube.net/news/2023/09/15/security-update-1.6.3-released
- [other] https://lists.debian.org/debian-lts-announce/2023/09/msg00024.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43770

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.