CVE-2023-23757: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability allows SQL

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-23757 is a critical-severity flaw (CVSS 9.8) affecting bestaddon gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability allows SQL Injection.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-08-07
Last modified	2026-06-17

Publisher (CNA): Joomla! Project · Vendor: bestaddon

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

Am I affected?

Timeline

2023-08-07 17:15 UTCPublished CVE record published
2026-06-17 05:37 UTCUpdated Record last modified

bestaddon bestaddon gallery UPGRADE

Affected: >= 1.0.0 and <= 1.2.0

Fixed in: newer than 1.2.0

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy bestaddon-gallery || rpm -q bestaddon-gallery || bestaddon-gallery --version

2. UPGRADE to newer than 1.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bestaddon-gallery

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bestaddon-gallery

Note

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

3. If no update is available yet, DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison bestaddon-gallery sudo apt install bestaddon-gallery=<VERSION_BEFORE_1.0.0> sudo apt-mark hold bestaddon-gallery

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bestaddon-gallery sudo dnf downgrade bestaddon-gallery-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add bestaddon-gallery

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-23757?

bestaddon gallery: upgrade to newer than 1.2.0. Exact commands for each OS are on this page.

Is CVE-2023-23757 being exploited?

CVE-2023-23757 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-2023-23757 affect?

CVE-2023-23757 affects bestaddon gallery. Severity is critical (CVSS 9.8). Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability allows SQL Injection.

How urgent is CVE-2023-23757?

Priority 51/100. Critical severity; Remotely exploitable, no login, no user action

References

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