CVE-2018-20420 json
In webERP 4.15, Z_CreateCompanyTemplateFile.php has Incorrect Access Control, leading to the overwrite of an existing .sql file on the targ…
published 2018-12-24 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12977
- cvss
- 4.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
In webERP 4.15, Z_CreateCompanyTemplateFile.php has Incorrect Access Control, leading to the overwrite of an existing .sql file on the target web site by creating a template and then using ../ directory traversal in the TemplateName parameter.
Exploit prediction
0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/eddietcc/CVEnotes/blob/master/webERP_4.15_Z_CreateCompanyTemplateFile/README.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.9 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:N/I:P/A:P |
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
github.com
/eddietcc/CVEnotes/blob/master/webERP_4.15_Z_CreateCompanyTemplateFile/README.md
exploit, third-party-advisory
Sources
- CVE List CVE-2018-20420
- NVD CVE-2018-20420
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.