CVE-2021-21738 Cross-site scripting in <ZXIPTV>

Medium 6.1 Published Updated

Attackers can execute cross-site scripting attacks on ZTE video platform users by tampering with parameters due to insufficient input validation.

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-2021-21738?

CVE-2021-21738 is a medium-severity cross-site scripting vulnerability in <ZXIPTV>, published on 5 Aug 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

ZTE's big video business platform has two reflective cross-site scripting (XSS) vulnerabilities. Due to insufficient input verification, the attacker could implement XSS attacks by tampering with the parameters, to affect the operations of valid users. This affects: <ZXIPTV><ZXIPTV-EAS_PV5.06.04.09>

Weakness: CWE-79

Which versions are affected by CVE-2021-21738?

It affects 1 product.

Products include Zte Zxiptv Firmware.

How do I fix CVE-2021-21738?

No fix has been published for CVE-2021-21738 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-2021-21738 being exploited?

There is no known exploitation of CVE-2021-21738 in the wild and no public exploit code.

Sources

Also known as GHSA-m8mc-h47f-g549.

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