CVE-2026-61520
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Simple Machines Forum SSRF via image proxy
Simple Machines Forum 2.1 prior to commit 4bf35cf and 3.0 prior to commit b4d23df contains a server-side request forgery vulnerability in the image proxy that allows authenticated attackers to trigger internal HTTP requests by embedding attacker-controlled URLs in BBCode image tags, which the proxy fetches without validating resolved destination IPs against private address ranges, loopback, or link-local addresses. Attackers can leverage SMF's automatic HMAC signature generation for any embedded image URL to obtain valid signed proxy requests targeting internal services such as cloud instance metadata endpoints, internal web applications, and container network services.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
SMF
- Vendor
- SimpleMachines
- Product
- SMF
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.1.0 | affected | semver | 2.1.7 | Unavailable | None listed |
| 4bf35cf9e45573a5f55a6f52995086c1da89c096 | unaffected | git | Unavailable | Unavailable | None listed |
| 3.0.0 | unaffected | semver | Unavailable | Unavailable | None listed |
| b4d23dfd74a511587c605f9d294cefc3a75b4b26 | affected | git | Unavailable | Unavailable | None listed |