CVE-2023-45757 Apache bRPC: The builtin service rpcz page has an XSS attack vulnerability
Attackers can inject arbitrary XSS code into the builtin rpcz page of Apache bRPC if the feature is enabled, potentially compromising user sessions.
- 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-2023-45757?
CVE-2023-45757 is a medium-severity cross-site scripting vulnerability in Apache bRPC, published on 16 Oct 2023. 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
Security vulnerability in Apache bRPC <=1.6.0 on all platforms allows attackers to inject XSS code to the builtin rpcz page. An attacker that can send http request to bRPC server with rpcz enabled can inject arbitrary XSS code to the builtin rpcz page.
Solution (choose one of three): 1. upgrade to bRPC > 1.6.0, download link: https://dist.apache.org/repos/dist/release/brpc/1.6.1/ 2. If you are using an old version of bRPC and hard to upgrade, you can apply this patch: https://github.com/apache/brpc/pull/2411 3. disable rpcz feature
Weakness: CWE-79
Which versions are affected by CVE-2023-45757?
It affects 1 product.
Products include Apache Brpc.
How do I fix CVE-2023-45757?
No fix has been published for CVE-2023-45757 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-2023-45757 being exploited?
There is no known exploitation of CVE-2023-45757 in the wild and no public exploit code.
Other vulnerabilities in Apache bRPC
- CVE-2025-60021 Apache bRPC: Remote command injection vulnerability in heap builtin service
- CVE-2023-31039 Apache bRPC: ServerOptions.pid_file may cause arbitrary code execution
- CVE-2025-59789 Apache bRPC: Stack Exhaustion via Unbounded Recursion in JSON Parser
- CVE-2025-54472 Apache bRPC: Redis Parser Remote Denial of Service
- CVE-2024-23452 Apache bRPC: HTTP request smuggling vulnerability
Sources
Also known as GHSA-rjj3-fg8r-3rr5.