How severe is CVE-2021-40926?

CVE-2021-40926 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-2021-40926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40926?

CVE-2021-40926 primarily affects Getid3. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40926?

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

When was CVE-2021-40926 published?

CVE-2021-40926 was published on 2021-10-01 and last updated on 2026-06-17.

CVE-2021-40926

CVE-2021-40926 is a medium-severity vulnerability in Getid3 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% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Getid3
Published: 2021-10-01
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in demos/demo.mysqli.php in getID3 1.X and v2.0.0-beta allows remote attackers to inject arbitrary web script or HTML via the showtagfiles parameter.

Frequently asked questions

What is CVE-2021-40926?: Cross-site scripting (XSS) vulnerability in demos/demo.mysqli.php in getID3 1.X and v2.0.0-beta allows remote attackers to inject arbitrary web script or HTML via the showtagfiles parameter.
How severe is CVE-2021-40926?: CVE-2021-40926 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-2021-40926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40926?: CVE-2021-40926 primarily affects Getid3. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40926?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40926 published?: CVE-2021-40926 was published on 2021-10-01 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:getid3:getid3:*:*:*:*:*:*:*:*
cpe:2.3:a:getid3:getid3:2.0.0:beta:*:*:*:*:*:*

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