CVE-2020-18699 Lin-CMS-Flask Cross Site Scripting (XSS) vulnerability
Remote attackers can execute arbitrary code via Cross-Site Scripting in the Username parameter of Lin-CMS-Flask.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-18699?
CVE-2020-18699 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cross Site Scripting (XSS) in Lin-CMS-Flask v0.1.1 allows remote attackers to execute arbitrary code by entering scripts in the the 'Username' parameter of the in component 'app/api/cms/user.py'.
Weakness: CWE-79
Which versions are affected by CVE-2020-18699?
3 open source packages ship an affected version, including lin-cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
lin-cms PyPI | All versions | None |
lin-cms PyPI | All versions to 0.1.1b2 | None |
lin-cms PyPI | All versions to 0.1.1b2 | None |
Products include Talelin Lin-Cms-Flask.
How do I fix CVE-2020-18699?
No fix has been published for CVE-2020-18699 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-18699 being exploited?
There is no known exploitation of CVE-2020-18699 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rvf8-c35m-8289, PYSEC-2021-340.