CVE-2018-17302 json
Stored XSS exists in views/fields/wysiwyg.js in EspoCRM 5.3.6 via a /#Email/view saved draft message.
published 2018-09-21 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9057
- cvss
- 5.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
Stored XSS exists in views/fields/wysiwyg.js in EspoCRM 5.3.6 via a /#Email/view saved draft message.
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/espocrm/espocrm/issues/1039 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/espocrm/espocrm/issues/1039
exploit, issue-tracking, third-party-advisory
- github.com /security-breachlock/CVE-2018-17302/blob/master/XSS%20%28Stored%29%20in%20EspoCRM.pdf
Sources
- CVE List CVE-2018-17302
- NVD CVE-2018-17302
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.