How severe is CVE-2011-1491?

CVE-2011-1491 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2011-1491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1491?

CVE-2011-1491 primarily affects Roundcube Webmail. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1491?

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

When was CVE-2011-1491 published?

CVE-2011-1491 was published on 2011-04-08 and last updated on 2026-06-16.

CVE-2011-1491

CVE-2011-1491 is a low-severity vulnerability in Roundcube Webmail with a CVSS 2.0 base score of 3.5. 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-20.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Roundcube Webmail
Published: 2011-04-08
Last modified: 2026-06-16

Description

The login form in Roundcube Webmail before 0.5.1 does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to obtain sensitive information by arranging for a victim to login to the attacker's account and then compose an e-mail message, related to a "login CSRF" issue.

Frequently asked questions

What is CVE-2011-1491?: The login form in Roundcube Webmail before 0.5.1 does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to obtain sensitive information by arranging for a victim to login to the attacker's account and then compose an e-mail message, related to a "login CSRF" issue.
How severe is CVE-2011-1491?: CVE-2011-1491 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2011-1491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1491?: CVE-2011-1491 primarily affects Roundcube Webmail. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1491?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1491 published?: CVE-2011-1491 was published on 2011-04-08 and last updated on 2026-06-16.

References

Affected products (22)

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:beta:*:*:*:*:*:*
cpe:2.3:a:roundcube:webmail:0.5:rc:*:*:*:*:*:*

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