CVE-2021-23929 Cross-site scripting in n/a
An attacker can execute arbitrary scripts in a victim's browser by uploading a crafted HTML document with a malicious Content-Disposition header.
- 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-2021-23929?
CVE-2021-23929 is a medium-severity cross-site scripting vulnerability in Open-Xchange Open-Xchange Appsuite, published on 12 Jan 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
OX App Suite through 7.10.4 allows XSS via a crafted Content-Disposition header in an uploaded HTML document to an ajax/share/<share-token>?delivery=view URI.
Weakness: CWE-79
Which versions are affected by CVE-2021-23929?
It affects 1 product.
Products include Open-Xchange Open-Xchange Appsuite.
How do I fix CVE-2021-23929?
No fix has been published for CVE-2021-23929 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-2021-23929 being exploited?
There is no known exploitation of CVE-2021-23929 in the wild and no public exploit code.
Other vulnerabilities in Open-Xchange Open-Xchange Appsuite
Sources
Also known as GHSA-fvxj-xw9f-pwm9.