go-sonic Theme Fetching API git_fetcher.go FetchTheme server-side request forgery

published 2026-01-01 10 mo ago modified 2026-10-07 33 d ago also EUVD-2025-206134

cvss: 4.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits: 0; none known

A flaw has been found in go-sonic sonic up to 1.1.4. The affected element is the function FetchTheme of the file service/theme/git_fetcher.go of the component Theme Fetching API. Executing a manipulation of the argument uri can lead to server-side request forgery. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 10 mo ago (2026-01-05)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

note-hxlab.wetolink.com https://note-hxlab.wetolink.com/share/SeCdFaAVlHAJ#-span--strong-proof-of-concept---strong---span- referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	4.7	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	5.8	AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	5.8	AV:N/AC:L/Au:M/C:P/I:P/A:P

Affected products

go-sonic sonic

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

note-hxlab.wetolink.com /share/SeCdFaAVlHAJ#-span--strong-proof-of-concept---strong---span-
exploit
vuldb.com /?id.339335
vdb-entry, technical-description
vuldb.com /?ctiid.339335
signature, permissions-required
vuldb.com /?submit.719789
third-party-advisory
note-hxlab.wetolink.com /share/SeCdFaAVlHAJ
related

Sources

CVE List CVE-2025-15414
NVD CVE-2025-15414

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary