How severe is CVE-2011-2937?

CVE-2011-2937 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-2937 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2937?

CVE-2011-2937 primarily affects Roundcube Webmail. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2937?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2937 published?

CVE-2011-2937 was published on 2011-09-21 and last updated on 2026-06-16.

CVE-2011-2937

CVE-2011-2937 is a medium-severity vulnerability in Roundcube Webmail with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Roundcube Webmail
Published: 2011-09-21
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the UI messages functionality in Roundcube Webmail before 0.5.4 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter to the default URI.

Frequently asked questions

What is CVE-2011-2937?: Cross-site scripting (XSS) vulnerability in the UI messages functionality in Roundcube Webmail before 0.5.4 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter to the default URI.
How severe is CVE-2011-2937?: CVE-2011-2937 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-2937 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2937?: CVE-2011-2937 primarily affects Roundcube Webmail. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2937?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2937 published?: CVE-2011-2937 was published on 2011-09-21 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:alpha:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:beta2:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:rc1:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1:rc2:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.2:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.2:alpha:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.2:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.2.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.3:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.3:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.3:rc1:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.4:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.4:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5:rc:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5.2:*:*:*:*:*:*:*

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