How severe is CVE-2006-3420?

CVE-2006-3420 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-3420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-3420?

CVE-2006-3420 primarily affects Mybulletinboard. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-3420?

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-2006-3420 published?

CVE-2006-3420 was published on 2006-07-07 and last updated on 2026-06-16.

CVE-2006-3420

CVE-2006-3420 is a high-severity vulnerability in Mybulletinboard 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.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mybulletinboard
Published: 2006-07-07
Last modified: 2026-06-16

Description

Cross-site request forgery (CSRF) vulnerability in editpost.php in MyBulletinBoard (MyBB) before 1.1.5 allows remote attackers to perform unauthorized actions as a logged in user and delete arbitrary forum posts via a bbcode IMG tag with a modified delete parameter in a deletepost action. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Frequently asked questions

What is CVE-2006-3420?: Cross-site request forgery (CSRF) vulnerability in editpost.php in MyBulletinBoard (MyBB) before 1.1.5 allows remote attackers to perform unauthorized actions as a logged in user and delete arbitrary forum posts via a bbcode IMG tag with a modified delete parameter in a deletepost action. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
How severe is CVE-2006-3420?: CVE-2006-3420 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-3420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3420?: CVE-2006-3420 primarily affects Mybulletinboard. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-3420?: 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-2006-3420 published?: CVE-2006-3420 was published on 2006-07-07 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:mybulletinboard:mybulletinboard:1.1:*:*:*:*:*:*:*
cpe:2.3:a:mybulletinboard:mybulletinboard:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mybulletinboard:mybulletinboard:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mybulletinboard:mybulletinboard:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:mybulletinboard:mybulletinboard:1.1.4:*:*:*:*:*:*:*

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