How severe is CVE-2023-6027?

CVE-2023-6027 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2023-6027?

CVE-2023-6027 affects the following packages: elijaa/phpmemcacheadmin (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2023-6027?

The records we use list no patched version of elijaa/phpmemcacheadmin for CVE-2023-6027. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect CVE-2023-6027 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for elijaa/phpmemcacheadmin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-6027 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2023-6027 actively exploited in the wild?

No public exploit code has been indexed for CVE-2023-6027 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2023-6027?

CVE-2023-6027 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 34th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2023-6027?

CVE-2023-6027 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2023-6027 published, and has it been updated?

CVE-2023-6027 was published on November 30, 2023 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘

🐘 Packagist

Not in CISA KEV

MEDIUM severity

CVE-2023-6027 — phpmemcacheadmin

MEDIUM

CVE-2023-6027 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in elijaa/phpmemcacheadmin. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Cross-site Scripting vulnerability in PHPMemcachedAdmin

Also known asGHSA-pr4w-m4rp-gp87

Published

Nov 30, 2023

Updated

Oct 28, 2026

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs34th percentile — riskier than 34% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐘elijaa/phpmemcacheadmin

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

A critical flaw has been identified in elijaa/phpmemcachedadmin affecting version 1.3.0, specifically related to a stored XSS vulnerability. This vulnerability allows malicious actors to insert a carefully crafted JavaScript payload. The issue arises from improper encoding of user-controlled entries in the "/pmcadmin/configure.php" parameter.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`elijaa/phpmemcacheadmin`	all versions	No fix

Affected Products

1 product · 1 configurations

Application

phpmemcachedadminelijaa

1 version

1.3.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for elijaa/phpmemcacheadmin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of elijaa/phpmemcacheadmin for CVE-2023-6027. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2023-6027 in your dependencies?

Find it across Packagist, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

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

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

security-advisories

4.8/10

Maintained10/10

Code-Review10/10

Branch-Protection0/10

Assessed Oct 19, 2026

Timeline

Disclosed

Nov 30, 2023

Last updated

Oct 28, 2026

Identifiers

CVE-2023-6027

GHSA-pr4w-m4rp-gp87

References

Advisorygithub.com · CVE 2023 6027.json Advisorynvd.nist.gov · CVE 2023 6027 Webincibe.es · multiple vulnerabilities phpmemcachedadmin Webgithub.com · CVE 2023 6027.yaml Packagegithub.com · phpmemcachedadmin

Related vulnerabilities

Also affects elijaa/phpmemcacheadmin

This CVE is medium severity; 1 of 1 other CVE affecting elijaa/phpmemcacheadmin is rated as high or higher (top: critical).

CVE-2023-6026

Same weakness: CWE-79

This CVE is medium severity; 7 of 7 other CVEs with CWE-79 are rated as high or higher (top: critical).

CVE-2026-55649CVE-2026-113787CVE-2026-44267CVE-2026-96632CVE-2026-9086CVE-2026-118246CVE-2026-118251Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026