GHSA-vmg4-6gfg-83qx

Source

https://github.com/advisories/GHSA-vmg4-6gfg-83qx

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-vmg4-6gfg-83qx/GHSA-vmg4-6gfg-83qx.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-vmg4-6gfg-83qx

Aliases

CVE-2026-71553

Published

2026-09-02T15:12:41Z

Modified

2026-10-28T15:30:05Z

Severity

7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persistent DoS

Details

The vulnerability is a single-request persistent DoS by submitting e.g. "PATCH /api/v1/article/" with a valid editor session and body of {"toString.call":"x"}, overwriting the global toString function with value x.

Fabian

Database specific

{
    "cwe_ids": [
        "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-02T15:12:41Z",
    "nvd_published_at": "2026-08-17T20:16:46Z",
    "severity": "HIGH"
}

References

Affected packages

npm / apostrophe

Package

Name: apostrophe; View open source insights on deps.dev
Purl: pkg:npm/apostrophe

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

4.32.1

Database specific

last_known_affected_version_range

"<= 4.32.0"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-vmg4-6gfg-83qx/GHSA-vmg4-6gfg-83qx.json"