# CVE-2025-30949: WordPress Site Chat on Telegram plugin <= 1.0.4 - PHP Object Injection Vulnerability

> An attacker can exploit PHP object injection in the Site Chat on Telegram plugin to potentially execute arbitrary code on the WordPress site.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jul 2025
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-xxh9-45q4-7wjc

## What is CVE-2025-30949?

CVE-2025-30949 is a critical unsafe deserialization vulnerability in Guru Team Site Chat on Telegram, published on 16 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Deserialization of Untrusted Data vulnerability in Guru Team Site Chat on Telegram site-chat-on-telegram allows Object Injection.This issue affects Site Chat on Telegram: from n/a through <= 1.0.4.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2025-30949?


## How do I fix CVE-2025-30949?

No fix has been published for CVE-2025-30949 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-30949 being exploited?

There is no known exploitation of CVE-2025-30949 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-30949 and fix it if it is affected.

What it is: CVE-2025-30949 is a critical unsafe deserialization vulnerability in Guru Team Site Chat on Telegram, published on 16 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-30949 in the wild and no public exploit code.

Affected product: Guru Team Site Chat on Telegram. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-30949/ (Markdown: https://insights.sbomify.com/CVE-2025-30949/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-30949
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-30949
- OSV: https://osv.dev/vulnerability/CVE-2025-30949

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-30949/
Summaries are generated and may contain mistakes; the official description above is the record.