CVE-2023-43770

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2024-02-12. Federal remediation due 2024-03-04.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

63.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.1% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-09-22 00:00Z3 YR AGO

Last updated

2025-10-21 23:05Z1 YR AGO

Reserved

2023-09-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

429421a4c8096594061c1fcc4a2b3ececa12ea0d45960ec4c77f4bd4dbd5f933

• github.comhttps://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b
• roundcube.nethttps://roundcube.net/news/2023/09/15/security-update-1.6.3-released
• lists.debian.org[debian-lts-announce] 20230922 [SECURITY] [DLA 3577-1] roundcube security updatehttps://lists.debian.org/debian-lts-announce/2023/09/msg00024.htmlmailing-list
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43770government-resource