CVE-2020-25911
XML External Entity vulnerability in MODX CMS
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.1
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
CVE-2020-25911- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-611
- Updated
- 2026-11-02
CVE List No score
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
CVE-2020-25911- Updated
- 2026-11-02
EUVDEUVD-2021-2397 No score
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
EUVD-2021-2397- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vhfp-9wvj-gwvg
9.1
XML External Entity vulnerability in MODX CMS
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
GHSA-vhfp-9wvj-gwvg- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-611
- Updated
- 2026-11-02
OSV
9.1
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
CVE-2020-25911- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-vhfp-9wvj-gwvg
9.1
XML External Entity vulnerability in MODX CMS
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
GHSA-vhfp-9wvj-gwvg- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVBIT-modx-2020-25911 No score
A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).
- Record
BIT-modx-2020-25911- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
modx/revolutionPackagist |
before 2.8.0 | 2.8.0 |
modxBitnami |
2.7.3 to 2.7.3 | None known |
modx/revolutionPackagist |
before 2.8.0, plus listed versions v2.7.0-plv2.7.1-plv2.7.2-plv2.7.3-pl |
2.8.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-25911 is a critical vulnerability (CVSS 9.1) in Modx Revolution, published October 31, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.38%, the 84th percentile. Fixed in modx/revolution 2.8.0.
References
github.com/modxcms/revolution/issues/15237
github.com/dahua966/Vul_disclose/blob/main/XXE_modxcms.md
nvd.nist.gov/vuln/detail/CVE-2020-25911
github.com/modxcms/revolution/pull/15238
github.com/modxcms/revolution/pull/15238/commits/1b7ffe02df30f05dbf67dd15e4d8101687c1585a
github.com/advisories/GHSA-vhfp-9wvj-gwvg
github.com/modxcms/revolution