# CVE-2025-53693: HTML Cache Poisoning through Unsafe Reflections

> Attackers can exploit unsafe reflection to poison HTML caches, potentially leading to code execution or data modification in Sitecore XM and XP.

- **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:** 3 Sep 2025
- **Updated:** 3 Sep 2025
- **Also known as:** GHSA-6jj2-mfwj-34q5

## What is CVE-2025-53693?

CVE-2025-53693 is a critical code injection vulnerability in Sitecore Experience Platform (XP), published on 3 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Sitecore Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Cache Poisoning.This issue affects Sitecore Experience Manager (XM): from 9.0 through 9.3, from 10.0 through 10.4; Experience Platform (XP): from 9.0 through 9.3, from 10.0 through 10.4.

Weakness: CWE-470 (Use of Externally-Controlled Input to Select Classes or Code)

## Which versions are affected by CVE-2025-53693?

It affects 4 products.


Products: Sitecore Experience Commerce, Sitecore Experience Manager, Sitecore Experience Platform, Sitecore Managed Cloud.

## How do I fix CVE-2025-53693?

No fix has been published for CVE-2025-53693 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-53693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53693 exists.

Public exploit code:

- HTML cache poisoning through unsafe reflections (github_poc): https://github.com/blueisbeautiful/CVE-2025-53693

## Other vulnerabilities in Sitecore Experience Platform (XP)

- [CVE-2025-53690](https://insights.sbomify.com/CVE-2025-53690/): Sitecore Multiple Products Deserialization of Untrusted Data (critical 9.0, exploited in the wild)
- [CVE-2023-35813](https://insights.sbomify.com/CVE-2023-35813/): Code injection in n/a (critical 9.8)
- [CVE-2025-53691](https://insights.sbomify.com/CVE-2025-53691/): Sitecore Experience Remote Code Execution through Insecure Deserialization (high 8.8)
- [CVE-2025-34510](https://insights.sbomify.com/CVE-2025-34510/): Sitecore XM, XC, and XP Post-Auth RCE via Zip Slip (high 8.8)
- [CVE-2025-34511](https://insights.sbomify.com/CVE-2025-34511/): Sitecore PowerShell Extension RCE via Unrestricted Upload (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-53693 and fix it if it is affected.

What it is: CVE-2025-53693 is a critical code injection vulnerability in Sitecore Experience Platform (XP), published on 3 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53693 exists.

Affected product: Sitecore Experience Platform (XP). 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-2025-53693/ (Markdown: https://insights.sbomify.com/CVE-2025-53693/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-53693
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-53693
- OSV: https://osv.dev/vulnerability/CVE-2025-53693

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-53693/
Summaries are generated and may contain mistakes; the official description above is the record.