CVE-2021-4261: A vulnerability classified as critical has been found in pacman-canvas up to 1.0.5

Q: How do I fix CVE-2021-4261?

pacman-canvas: upgrade to 1.0.6. Exact commands for each OS are on this page.

Q: Is CVE-2021-4261 being exploited?

CVE-2021-4261 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-4261 affect?

CVE-2021-4261 affects pacman-canvas. Severity is medium (CVSS 6.3). 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

Q: How urgent is CVE-2021-4261?

Priority 35/100. No elevated risk signals yet.

Routine

MEDIUM 6.3UPGRADE

CVE-2021-4261 is a medium-severity flaw (CVSS 6.3) affecting pacman-canvas. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 a

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-707, CWE-89
Published	2022-12-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: pacman-canvas project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-19 14:15 UTCPublished CVE record published
2026-06-17 04:19 UTCUpdated Record last modified

pacman-canvas project pacman-canvas UPGRADE

Affected: < 1.0.6

Fixed in: 1.0.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pacman-canvas || rpm -q pacman-canvas || pacman-canvas --version

2. UPGRADE to 1.0.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pacman-canvas

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pacman-canvas

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-4261?

pacman-canvas: upgrade to 1.0.6. Exact commands for each OS are on this page.

Is CVE-2021-4261 being exploited?

CVE-2021-4261 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-4261 affect?

CVE-2021-4261 affects pacman-canvas. Severity is medium (CVSS 6.3). 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

How urgent is CVE-2021-4261?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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