Vulnerability · Published May 21, 2021 · Assigned by mitre
CVE-2021-33507
Medium 6.1
In plain English
A medium-severity security flaw in the plone package (PyPI). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)0.8%top 44.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Zope Products.CMFCore before 2.5.1 and Products.PluggableAuthService before 2.6.2, as used in Plone through 5.2.4 and other products, allow Reflected XSS.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | plone | no fix listed | GHSA-35rg-466w-77h3 |
| PyPI | plone | 5.2.5 | PYSEC-2021-79 |
| PyPI | products-cmfcore | 2.5.1 | GHSA-35rg-466w-77h3 |
| PyPI | products-cmfcore | 2.5.1 | PYSEC-2026-2961 |
| PyPI | products-pluggableauthservice | 2.6.2 | GHSA-35rg-466w-77h3 |
| PyPI | products-pluggableauthservice | 2.6.2 | PYSEC-2026-2967 |
Affected products (as reported)
References
- https://plone.org/security/hotfix/20210518/reflected-xss-in-various-spots x_refsource_MISC
- [oss-security] 20210522 Re: Plone security hotfix 20210518 mailing-list, x_refsource_MLIST