CVE-2021-25978

Medium

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.

SeverityMedium
CVSS5.4
Exploit probability—
ProductApostrophe
PublishedNov 7, 2021
First seenNov 7, 2021

How to fix

Update
  • apostrophe3.4.0 or later

Affected products

ProductAffected versionsFixed in
apostrophenpm2.63.0 ≤ v < 3.4.03.4.0
apostrophecms apostrophecms2.63.0 ≤ v ≤ 3.3.1—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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