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Known exploited vulnerability

CVE-2023-43770

mediumCVSS 3.1 6.1In CISA KEVEPSS 64%Published · n/a

The short answer

CVE-2023-43770 affects n/a n/a and is rated medium (CVSS 6.1). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-02-12: attackers are using it, so patch it first. The vendor has linked a patch.

What it is

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.

Weakness: CWE-79.

Severity

6.1 medium

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

Exploited (CISA KEV)

Yes, since Feb 12, 2024

Federal due date Mar 4, 2024

EPSS, next 30 days

64%

Higher than 99% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

What CISA says to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected products

n/a, webmail, debian_linux. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2023-43770 being exploited?

Yes. CISA added CVE-2023-43770 to its Known Exploited Vulnerabilities catalog on 2024-02-12, with a federal remediation due date of 2024-03-04.

How do I fix CVE-2023-43770?

CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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