CVE-2020-7936
Plone Open Redirect Vulnerability
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
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
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
CVE-2020-7936- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
CVE-2020-7936- Updated
- 2026-11-02
EUVDEUVD-2020-0143 No score
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
EUVD-2020-0143- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-82j9-wfcf-9v2h
Plone Open Redirect Vulnerability
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
GHSA-82j9-wfcf-9v2h- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
CVE-2020-7936- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-82j9-wfcf-9v2h
Plone Open Redirect Vulnerability
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
GHSA-82j9-wfcf-9v2h- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
OSVPYSEC-2020-85 No score
An open redirect on the login form (and possibly other places) in Plone 4.0 through 5.2.1 allows an attacker to craft a link to a Plone Site that, when followed, and possibly after login, will redirect to an attacker's site.
- Record
PYSEC-2020-85- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
plonePyPI |
4.0 up to 4.3.20 | 4.3.20 |
plonePyPI |
5.0rc1 up to 5.1.7 | 5.1.7 |
plonePyPI |
5.2.0 up to 5.2.2 | 5.2.2 |
plonePyPI |
4.0 up to 4.3.20, plus listed versions 4.0.14.0.104.0.24.0.34.0.4 Show 45 moreShow less4.0.54.0.64.0.74.0.84.0.94.14.1.14.1.24.1.34.1.44.1.54.1.64.1a14.1a24.1a34.1b14.1b24.1rc24.1rc34.24.2.14.2.24.2.34.2.44.2.54.2.64.2.74.2a14.2a24.2b14.2b24.2rc14.2rc24.34.3.14.3.104.3.114.3.124.3.134.3.144.3.154.3.164.3.174.3.184.3.19 |
4.3.20 |
plonePyPI |
5.0rc1 up to 5.1.7, plus listed versions 5.05.0.15.0.105.0.25.0.3 Show 23 moreShow less5.0.45.0.55.0.65.0.75.0.85.0.95.0rc25.0rc35.1.05.1.15.1.25.1.35.1.45.1.55.1.65.1a15.1a25.1b15.1b25.1b35.1b45.1rc15.1rc2 |
5.1.7 |
plonePyPI |
5.2.0 up to 5.2.2, plus listed versions 5.2.1 |
5.2.2 |
plonePyPI |
4.0 up to 5.2.2, plus listed versions 4.0.14.0.104.0.24.0.34.0.4 Show 45 moreShow less4.0.54.0.64.0.74.0.84.0.94.14.1.14.1.24.1.34.1.44.1.54.1.64.1a14.1a24.1a34.1b14.1b24.1rc24.1rc34.24.2.14.2.24.2.34.2.44.2.54.2.64.2.74.2a14.2a24.2b14.2b24.2rc14.2rc24.34.3.14.3.104.3.114.3.124.3.134.3.144.3.154.3.164.3.174.3.184.3.19 |
5.2.2 |
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-2020-7936 is a medium vulnerability (CVSS 6.1) in Plone, published January 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. Fixed in plone 4.3.20.
References
plone.org/security/hotfix/20200121/an-open-redirection-on-the-login-form-and-possibly-other-places
openwall.com/lists/oss-security/2020/01/22/1
nvd.nist.gov/vuln/detail/CVE-2020-7936
github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2020-85.yaml
Left out here: 74 versions. The JSON record has them.