CVE-2018-4876 Cross-site scripting in Adobe Experience Manager 6.3, 6.2, 6.1
Attackers can execute arbitrary scripts in user browsers via XSS in Adobe Experience Manager, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-4876?
CVE-2018-4876 is a medium-severity cross-site scripting vulnerability in Adobe Experience Manager, published on 27 Feb 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Adobe Experience Manager versions 6.3, 6.2, and 6.1 are vulnerable to cross-site scripting via a bypass of the Sling XSSAPI#getValidHref function.
Weakness: CWE-79
Which versions are affected by CVE-2018-4876?
It affects 1 product.
Products include Adobe Experience Manager.
How do I fix CVE-2018-4876?
No fix has been published for CVE-2018-4876 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2018-4876 being exploited?
There is no known exploitation of CVE-2018-4876 in the wild and no public exploit code.
Other vulnerabilities in Adobe Experience Manager
- CVE-2026-90532 Adobe Experience Manager | Incorrect Authorization (CWE-863)
- CVE-2026-105895 Adobe Experience Manager | Improper Input Validation (CWE-20)
- CVE-2026-19232 Adobe Experience Manager | Incorrect Authorization (CWE-863)
- CVE-2025-49533 Adobe Experience Manager (MS) | Deserialization of Untrusted Data (CWE-502)
- CVE-2021-40722 AEM Forms Improper Restriction of XML External Entity Reference
Sources
Also known as GHSA-c3mv-qqg8-gjxx.