Quick answers
- Is CVE-2016-7136 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2016-7136 being exploited in the wild.
- How severe is CVE-2016-7136?
- Low severity, with a CVSS score of 3, published 7 March 2017.
- Which products and versions are affected?
- Plone 4.0.0 through 4.3.11 and 5.0.0 through 5.0.6; plone (PyPI) ECOSYSTEM:introduced=5.0,fixed=5.0.7,introduced=4.2,fixed=4.3.12.
- Is there a fix for CVE-2016-7136?
- Yes. plone (PyPI): upgrade to 4.3.12 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2016-7136 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2016-7136?
- Check whether you run Plone or plone (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- plone (PyPI): upgrade to 4.3.12 or later
pip install "plone>=4.3.12"
Technical details
The vulnerability is a reflected cross-site scripting (XSS) flaw in the z3c.form component of Plone CMS, classified under CWE-79. It affects versions 4.x through 4.3.11 and 5.x through 5.0.6, and can be triggered by crafting a malicious GET request to the application. The vulnerability requires user interaction—a victim must click on or visit a malicious link—but does not require prior authentication or special privileges. An attacker can execute arbitrary JavaScript in a victim's browser session, potentially compromising session tokens, stealing sensitive data, or performing actions on behalf of the user. A fix was available in a security hotfix released on 2016-08-30.
Affected products
- Plone Plone 4.0.0 through 4.3.11 and 5.0.0 through 5.0.6
Identifiers
- CVE-2016-7136
- GHSA-22jm-p2vv-j2hc
- PYSEC-2017-59
Timeline
- 2016-09: disclosed: Initial public disclosure
- 2022-05-14: advisory: GHSA-22jm-p2vv-j2hc published
- 2016-08-30: patched: Security hotfix released