6.1

CVE-2025-27155: matrix-org pinecone Cross-site Scripting

CVSS: 6.1v3.1MediumDeferred
AliasesGHSA-fr62-mg2q-7wqvGO-2025-3500
Published 04-03-2025Last modified 04-03-2025

Vulnerability summary

CVE-2025-27155 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in matrix-org pinecone. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.4% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1

Timeline

  1. 04-03-2025
    PublishedVulnerability first disclosed.
  2. 04-03-2025
    Last modifiedVulnerability information updated.

Description

Pinecone is an experimental overlay routing protocol suite which is the foundation of the current P2P Matrix demos. The Pinecone Simulator (pineconesim) included in Pinecone up to commit ea4c337 is vulnerable to stored cross-site scripting. The payload storage is not permanent and will be wiped when restarting pineconesim.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

+0.01 pp

From 0.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/matrix-org1 product
  • pinecone≤ 0.11.0 | All versions (No fix recorded)
Matrix-org1 product
  • pinecone< 218b2801995b174085cb1c8fafe2d3aa661f85bd

2 vendors · 2 products

References

5 links