How severe is CVE-2011-5277?

CVE-2011-5277 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-5277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-5277?

CVE-2011-5277 affects Advanced Forum Signatures Project Advanced Forum Signatures. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-5277?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-5277 published?

CVE-2011-5277 was published on 2014-04-08 and last updated on 2026-06-16.

CVE-2011-5277

CVE-2011-5277 is a high-severity vulnerability in Advanced Forum Signatures Project Advanced Forum Signatures with a CVSS 2.0 base score of 7.5. 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-89.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Advanced Forum Signatures Project Advanced Forum Signatures
Published: 2014-04-08
Last modified: 2026-06-16

Description

Multiple SQL injection vulnerabilities in signature.php in the Advanced Forum Signatures (aka afsignatures) plugin 2.0.4 for MyBB allow remote attackers to execute arbitrary SQL commands via the (1) afs_type, (2) afs_background, (3) afs_showonline, (4) afs_bar_left, (5) afs_bar_center, (6) afs_full_line1, (7) afs_full_line2, (8) afs_full_line3, (9) afs_full_line4, (10) afs_full_line5, or (11) afs_full_line6 parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Frequently asked questions

What is CVE-2011-5277?: Multiple SQL injection vulnerabilities in signature.php in the Advanced Forum Signatures (aka afsignatures) plugin 2.0.4 for MyBB allow remote attackers to execute arbitrary SQL commands via the (1) afs_type, (2) afs_background, (3) afs_showonline, (4) afs_bar_left, (5) afs_bar_center, (6) afs_full_line1, (7) afs_full_line2, (8) afs_full_line3, (9) afs_full_line4, (10) afs_full_line5, or (11) afs_full_line6 parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
How severe is CVE-2011-5277?: CVE-2011-5277 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-5277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-5277?: CVE-2011-5277 affects Advanced Forum Signatures Project Advanced Forum Signatures. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-5277?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-5277 published?: CVE-2011-5277 was published on 2014-04-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:advanced_forum_signatures_project:advanced_forum_signatures:2.0.4:*:*:*:*:mybb:*:*

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