CVE-2026-49049 json
Joomla Extension - joomshaper.com - Unauthenticated access to Helix3 template ajax handler
published 2026-06-29 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-40122
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete arbitrary files, write arbitrary JSON files and update template parameters.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template JoomShaper Helix3 <=3.1.0 - Unauthenticated Arbitrary JSON File Write nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
- joomshaper.com Helix3 extension for Joomla
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
joomshaper.com
/
product
Sources
- CVE List CVE-2026-49049
- NVD CVE-2026-49049
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.