# Cross-Site Scripting (XSS) in PdfViewer

CVE record · `CVE-2025-6725`

- **Identifiers:** `CVE-2025-6725`
- **State:** Confirmed
- **Severity:** CVSS 5.4 Medium
- **Critical:** No
- **CNA:** ProgressSoftware
- **Weakness (CWE):** [CWE-79](https://cwe.mitre.org/data/definitions/79.html)
- **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md)
- **Technologies:** [Progress Software Kendo UI for jQuery](https://agentprime.io/advisories/technology/progress-software-kendo-ui-for-jquery.md) · [Progress Software Kendo UI for Angular](https://agentprime.io/advisories/technology/progress-software-kendo-ui-for-angular.md) · [Progress Software KendoReact](https://agentprime.io/advisories/technology/progress-software-kendoreact.md) · [Progress Software Telerik UI for ASP.NET MVC](https://agentprime.io/advisories/technology/progress-software-telerik-ui-for-asp-net-mvc.md) · [Progress Software Telerik UI for ASP.NET Core](https://agentprime.io/advisories/technology/progress-software-telerik-ui-for-asp-net-core.md) · [Progress Software Telerik UI for Blazor](https://agentprime.io/advisories/technology/progress-software-telerik-ui-for-blazor.md)
- **Published:** 2 Jul 2025
- **Updated:** 2 Jul 2025
- **Reviewed by a person:** No

Published by the CVE Program (CNA: ProgressSoftware) at 2 Jul 2025, 14:39 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Progress Software. Product: Kendo UI for jQuery.
  - affected: `2024.4.1112 to 2025.2.520, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Progress Software. Product: Kendo UI for Angular.
  - affected: `18.5.0 to 19.1.2, inclusive` (semver)
  - Other versions: unaffected
- Vendor: Progress Software. Product: KendoReact.
  - affected: `5.10.0 to 11.1.0, inclusive` (semver)
  - Other versions: unaffected
- Vendor: Progress Software. Product: Telerik UI for ASP.NET MVC.
  - affected: `2024.4.1112 to 2025.2.520, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Progress Software. Product: Telerik UI for ASP.NET Core.
  - affected: `2024.4.1112 to 2025.2.520, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Progress Software. Product: Telerik UI for Blazor.
  - affected: `3.6.0 to 9.0.0, inclusive` (semver)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 5.4 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`, from CNA (ProgressSoftware)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0027, the 19th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 2 Jul 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-6725](https://www.cve.org/CVERecord?id=CVE-2025-6725)
- [NVD: CVE-2025-6725](https://nvd.nist.gov/vuln/detail/CVE-2025-6725)

### References from the CNA

- <https://www.telerik.com/blazor-ui/documentation/knowledge-base/pdfviewer-xss-vulnerability-cve-2025-6725>
- <https://www.telerik.com/aspnet-core-ui/documentation/knowledge-base/kb-security-pdfviewer-xss-cve-2025-6725>
- <https://www.telerik.com/aspnet-mvc/documentation/knowledge-base/kb-security-pdfviewer-xss-cve-2025-6725>
- <https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/kb-security-pdfviewer-xss-cve-2025-6725>
- <https://www.telerik.com/kendo-angular-ui/components/knowledge-base/kb-security-pdfviewer-xss-cve-2025-6725>
- <https://www.telerik.com/kendo-react-ui/components/knowledge-base/kb-security-pdfviewer-xss-cve-2025-6725>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2025-6725>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-6725/>. Everything for agents: <https://agentprime.io/llms.txt>.