CVE-2020-7937 json
Plone cross site scripting (XSS)
published 6y ago modified 4mo ago also GHSA-8mc4-2xrc-g582 , PYSEC-2020-86 , EUVD-2020-0144
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
An XSS issue in the title field in Plone 5.0 through 5.2.1 allows users with a certain privilege level to insert JavaScript that will be executed when other users access the site.
Patch / fix
- pypi plone 5.2.2
Is CVE-2020-7937 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2020-7937 updated cvss 5.4
plone: XSS in the title field
-
Red Hat Enterprise Linux 5 congaaffected: no fix planned “Out of support scope”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/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 |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | plone | >=5.0, <=5.2.1 >=5.0, <5.2.2 |
5.2.2 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
plone.org
/security/hotfix/20200121
web, vendor-advisory
-
plone.org
/security/hotfix/20200121/xss-in-the-title-field-on-plone-5-0-and-higher
web, vendor-advisory
-
openwall.com
/lists/oss-security/2020/01/22/1
web, mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2020/01/24/1
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-7937
advisory
-
github.com
/plone/Plone
package
-
github.com
/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2020-86.yaml
web
-
github.com
/advisories/GHSA-8mc4-2xrc-g582
advisory
Sources
- CVE List CVE-2020-7937
- GitHub Advisory GHSA-8mc4-2xrc-g582
- NVD CVE-2020-7937
- OSV PYSEC-2020-86
Fencer Intel 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.