CVE-2018-20757
MODX Revolution allows XSS through extended user fields
CVE-2018-20757 is a medium vulnerability (CVSS 6.1) in Modx Revolution, published February 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. Fixed in modx/revolution 2.7.1-pl.
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.
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
What each source reports
NVD Score used
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.
- Record
CVE-2018-20757- 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
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.
- Record
CVE-2018-20757- Updated
- 2026-11-02
EUVDEUVD-2018-13300 No score
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.
- Record
EUVD-2018-13300- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gm2g-65wj-43g8
MODX Revolution allows XSS through extended user fields
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as a Container name or Attribute name.
- Record
GHSA-gm2g-65wj-43g8- 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
OSV
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.
- Record
CVE-2018-20757- 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 - Updated
- 2026-11-02
OSVGHSA-gm2g-65wj-43g8
MODX Revolution allows XSS through extended user fields
MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as a Container name or Attribute name.
- Record
GHSA-gm2g-65wj-43g8- 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
Affected packages
| Package | Affected | Fixed |
|---|---|---|
modx/revolutionPackagist |
before 2.7.1-pl | 2.7.1-pl |
modx/revolutionPackagist |
before 2.7.1-pl, plus listed versions v2.7.0-pl |
2.7.1-pl |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |