PT-2021-4840 · Adobe · Experience Manager

Published 2021-09-14 · Updated 2022-02-04 · CVE-2021-40711

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:M/Au:N/C:C/I:P/A:N

Name of the Vulnerable Software and Affected Versions Adobe Experience Manager versions 6.5.9.0 and earlier

Description The issue is related to a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve arbitrary code execution. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field. The vulnerability is also associated with insufficient protection of the web page structure, allowing a remote attacker to execute arbitrary JavaScript code in a user's browser.

Recommendations For Adobe Experience Manager versions 6.5.9.0 and earlier, consider disabling the Content Fragments feature until a patch is available to prevent exploitation of the stored XSS vulnerability. Restrict access to the vulnerable field to minimize the risk of malicious JavaScript execution in a victim's browser. Avoid using the vulnerable Content Fragments feature until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2021-05568

CVE-2021-40711

Affected Products

Experience Manager

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-40711 · Security Note
• https://osv.dev/vulnerability/CVE-2021-40711 · Vendor Advisory
• https://helpx.adobe.com/security/products/experience-manager/apsb21-82.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05568 · Security Note
• https://t.me/cvenotify/26273 · Telegram Post
• https://t.me/cvenotify/21730 · Telegram Post
• https://t.me/cvenotify/21961 · Telegram Post