CVE-2023-30267: CLTPHP <=6.0 is vulnerable to Cross Site Scripting (XSS) via application/home/controller/Changyan.php.

Q: How do I fix CVE-2023-30267?

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

Q: Is CVE-2023-30267 being exploited?

CVE-2023-30267 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-2023-30267 affect?

CVE-2023-30267 affects cltphp. Severity is medium (CVSS 6.1). CLTPHP <=6.0 is vulnerable to Cross Site Scripting (XSS) via application/home/controller/Changyan.php.

Q: How urgent is CVE-2023-30267?

Priority 30/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2023-30267 is a medium-severity flaw (CVSS 6.1) 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 Cross Site Scripting (XSS) via application/home/controller/Changyan.php.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-04-26
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

2023-04-26 14:15 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-2023-30267?

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

Is CVE-2023-30267 being exploited?

CVE-2023-30267 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-2023-30267 affect?

CVE-2023-30267 affects cltphp. Severity is medium (CVSS 6.1). CLTPHP <=6.0 is vulnerable to Cross Site Scripting (XSS) via application/home/controller/Changyan.php.

How urgent is CVE-2023-30267?

Priority 30/100. No elevated risk signals yet.

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-2023-30266 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.
CVE-2023-30264 CRITICAL 9.8 UPGRADE CLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type via application/admin/controller

References

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