CVE-2021-4176 Cross-site Scripting (XSS) - Reflected in livehelperchat/livehelperchat
Attackers can inject malicious scripts into Live Helper Chat, potentially stealing user sessions or executing code in victim browsers.
- 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
- Available
What is CVE-2021-4176?
CVE-2021-4176 is a medium-severity cross-site scripting vulnerability in livehelperchat/livehelperchat, published on 29 Dec 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
livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Weakness: CWE-79
Which versions are affected by CVE-2021-4176?
1 open source package ship an affected version, including livehelperchat. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
livehelperchat Bitnami | All versions | 3.91.0 |
Products include Livehelperchat Live Helper Chat.
How do I fix CVE-2021-4176?
Upgrade livehelperchat to 3.91.0 or later.
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-2021-4176 being exploited?
There is no known exploitation of CVE-2021-4176 in the wild and no public exploit code.
Other vulnerabilities in livehelperchat/livehelperchat
- CVE-2024-27516 livehelperchat Server-Side Template Injection
- CVE-2022-0935 Host Header injection in password Reset in livehelperchat/livehelperchat
- CVE-2022-1234 XSS in livehelperchat in livehelperchat/livehelperchat
- CVE-2022-1191 SSRF on index.php/cobrowse/proxycss/ in livehelperchat/livehelperchat
- CVE-2022-1213 SSRF filter bypass port 80, 433 in livehelperchat/livehelperchat
Sources
Also known as BIT-livehelperchat-2021-4176, GHSA-92fp-r453-7wpg.