Vulnerability · Published Nov 7, 2021 · Assigned by Mend
CVE-2021-25978Apostrophe - XSS
Medium 5.4
In plain English
A medium-severity cross-site scripting in Apostrophe from Apostrophe . There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.5%top 57.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Apostrophe CMS versions between 2.63.0 to 3.3.1 are vulnerable to Stored XSS where an editor uploads an SVG file that contains malicious JavaScript onto the Images module, which triggers XSS once viewed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | apostrophe | 3.4.0 | GHSA-4r9c-jghc-cx5m |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apostrophe | Apostrophe | unspecified – through 3.3.12.63.0 – before unspecified |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N