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CVE-2025-59337Discourse: Cross-Site Data Exposure via Backup Restore Metacommand Injection in Multisite Deployments

Description

Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1.

Timeline

  1. ID reserved

    By GitHub_M

  2. · 19 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-59337, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)4.0Medium5.5CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
NVDNVD · Analyzed4.0Medium5.5CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.30% · top 77% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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[![CVE-2025-59337](https://cveledger.app/badge/CVE-2025-59337.svg)](https://cveledger.app/cve/CVE-2025-59337)

Record last updated .