How severe is CVE-2010-4522?

CVE-2010-4522 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-4522 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4522?

CVE-2010-4522 primarily affects Mybb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4522?

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

When was CVE-2010-4522 published?

CVE-2010-4522 was published on 2010-12-30 and last updated on 2026-06-16.

CVE-2010-4522

CVE-2010-4522 is a medium-severity vulnerability in Mybb 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: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mybb
Published: 2010-12-30
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in MyBB (aka MyBulletinBoard) 1.4.14, and 1.6.x before 1.6.1, allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) editpost.php, (2) member.php, and (3) newreply.php.

Frequently asked questions

What is CVE-2010-4522?: Multiple cross-site scripting (XSS) vulnerabilities in MyBB (aka MyBulletinBoard) 1.4.14, and 1.6.x before 1.6.1, allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) editpost.php, (2) member.php, and (3) newreply.php.
How severe is CVE-2010-4522?: CVE-2010-4522 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-4522 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4522?: CVE-2010-4522 primarily affects Mybb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4522?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4522 published?: CVE-2010-4522 was published on 2010-12-30 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:mybb:mybb:1.4.14:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.0:*:*:*:*:*:*:*

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