CVE-2018-17874
ExpressionEngine before 4.3.5 has reflected XSS.
6.1 Medium
CVE-2018-17874 is a medium vulnerability (CVSS 6.1) in Expressionengine, published October 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. No source names a fixed version.
ExpressionEngine before 4.3.5 has reflected XSS.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
0.65%Up 0.2 points since Apr 14, 2021
What each source reports
NVD Score used
ExpressionEngine before 4.3.5 has reflected XSS.
- Record
CVE-2018-17874- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
ExpressionEngine before 4.3.5 has reflected XSS.
- Record
CVE-2018-17874- Updated
- 2026-11-02
EUVDEUVD-2018-9616 No score
ExpressionEngine before 4.3.5 has reflected XSS.
- Record
EUVD-2018-9616- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hjjp-hc99-6gw9
ExpressionEngine before 4.3.5 has reflected XSS.
ExpressionEngine before 4.3.5 has reflected XSS.
- Record
GHSA-hjjp-hc99-6gw9- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD |