CVE-2021-4261

Name: CVE-2021-4261
Creator: NVD / NIST
Published: 2022-12-19T14:15:10.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2021-4261 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability classified as critical has been found in pacman-canvas up to 1.0.5. Affected is the function addHighscore of the file data/db-handler.php. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

A vulnerability classified as critical has been found in pacman-canvas up to 1.0.5. Affected is the function addHighscore of the file data/db-handler.php. The manipulation leads to sql injection. It is possible to launch the attack remotely. Upgrading to version 1.0.6 is able to address this issue. The name of the patch is 29522c90ca1cebfce6453a5af5a45281d99b0646. It is recommended to upgrade the affected component. VDB-216270 is the identifier assigned to this vulnerability.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.60%

44.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pacman-Canvas Project	Pacman-Canvas	< 1.0.6

References

https://github.com/platzhersh/pacman-canvas/commit/29522c90ca1cebfce6453a5af5a45281d99b0646Patch, Third Party Advisory
https://github.com/platzhersh/pacman-canvas/releases/tag/1.0.6Release Notes, Third Party Advisory
https://vuldb.com/?id.216270Third Party Advisory
https://github.com/platzhersh/pacman-canvas/commit/29522c90ca1cebfce6453a5af5a45281d99b0646Patch, Third Party Advisory
https://github.com/platzhersh/pacman-canvas/releases/tag/1.0.6Release Notes, Third Party Advisory
https://vuldb.com/?id.216270Third Party Advisory

Timeline

Published: Dec 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4261?

How severe is CVE-2021-4261?

CVE-2021-4261 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4261?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4261?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST