CVE-2021-22889 Cross-site scripting in https://github.com/revive-adserver/revive-adserver
Reflected XSS in Revive Adserver allows attackers to execute JavaScript via crafted URLs, potentially compromising user accounts.
- 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-2021-22889?
CVE-2021-22889 is a medium-severity cross-site scripting vulnerability in Revive-Adserver Revive Adserver, published on 25 Mar 2021. 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
Revive Adserver before v5.2.0 is vulnerable to a reflected XSS vulnerability in the `statsBreakdown` parameter of stats.php (and possibly other scripts) due to single quotes not being escaped. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and pressing a certain key combination to execute injected JavaScript code.
Weakness: CWE-79
Which versions are affected by CVE-2021-22889?
It affects 1 product.
Products include Revive-Adserver Revive Adserver.
How do I fix CVE-2021-22889?
No fix has been published for CVE-2021-22889 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-2021-22889 being exploited?
There is no known exploitation of CVE-2021-22889 in the wild and no public exploit code.
Other vulnerabilities in Revive-Adserver Revive Adserver
- CVE-2016-9124 Security feature bypass in Revive Adserver All versions before 3.2.3
- CVE-2016-9125 Auth bypass in Revive Adserver All versions before 3.2.3
- CVE-2017-5830 Deserialization in n/a
- CVE-2016-9470 Other in Revive Adserver All versions before 3.2.5 and 4.0.0
- CVE-2026-50741 Code injection in Adserver
Sources
Also known as GHSA-4wcf-82pr-m725.