How severe is CVE-2011-0544?

CVE-2011-0544 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2011-0544 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0544?

CVE-2011-0544 primarily affects Phpbb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0544?

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

When was CVE-2011-0544 published?

CVE-2011-0544 was published on 2019-11-14 and last updated on 2026-06-16.

CVE-2011-0544

CVE-2011-0544 is a medium-severity vulnerability in Phpbb with a CVSS 3.x base score of 6.1. 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 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phpbb
Published: 2019-11-14
Last modified: 2026-06-16

Description

phpbb 3.0.x-3.0.6 has an XSS vulnerability via the [flash] BB tag.

Frequently asked questions

What is CVE-2011-0544?: phpbb 3.0.x-3.0.6 has an XSS vulnerability via the [flash] BB tag.
How severe is CVE-2011-0544?: CVE-2011-0544 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2011-0544 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0544?: CVE-2011-0544 primarily affects Phpbb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0544?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0544 published?: CVE-2011-0544 was published on 2019-11-14 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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