CVE-2023-30264: CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type via application/admin/controller

Q: How do I fix CVE-2023-30264?

cltphp: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-30264 being exploited?

CVE-2023-30264 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-2023-30264 affect?

CVE-2023-30264 affects cltphp. Severity is critical (CVSS 9.8). CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type via application/admin/controller/Template.php:update.

Q: How urgent is CVE-2023-30264?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-30264 is a critical-severity flaw (CVSS 9.8) affecting cltphp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type via application/admin/controller/Template.php:update.

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	0.7% (top 45%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-05-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cltphp

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

Am I affected?

Timeline

2023-05-04 20:15 UTCPublished CVE record published
2026-06-17 05:54 UTCUpdated Record last modified

cltphp cltphp UPGRADE

Affected: <= 6.0

Fixed in: newer than 6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cltphp || rpm -q cltphp || cltphp --version

2. UPGRADE to newer than 6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cltphp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cltphp

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-2023-30264?

cltphp: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Is CVE-2023-30264 being exploited?

CVE-2023-30264 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-2023-30264 affect?

CVE-2023-30264 affects cltphp. Severity is critical (CVSS 9.8). CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type via application/admin/controller/Template.php:update.

How urgent is CVE-2023-30264?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2023-30269 HIGH 8.1 UPGRADE CLTPHP <=6.0 is vulnerable to Improper Input Validation via application/admin/controller/Template.php.
CVE-2023-30268 CRITICAL 9.8 UPGRADE CLTPHP <=6.0 is vulnerable to Improper Input Validation.
CVE-2023-30267 MEDIUM 6.1 UPGRADE CLTPHP <=6.0 is vulnerable to Cross Site Scripting (XSS) via application/home/controller/Changyan.php.
CVE-2023-30266 HIGH 8.8 UPGRADE CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type.
CVE-2023-30265 MEDIUM 6.5 UPGRADE CLTPHP <=6.0 is vulnerable to Directory Traversal.

References

← Back to latest CVEs