CVE-2018-20149: XSS
First published: Fri Dec 14 2018(Updated: )
In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wordpress | 5.0.15+dfsg1-0+deb10u1 5.0.19+dfsg1-0+deb10u1 5.7.8+dfsg1-0+deb11u2 6.1.1+dfsg1-1 6.3.1+dfsg1-1 | |
| WordPress | <4.9.9 | |
| WordPress | >=5.0<5.0.1 | |
| Debian GNU/Linux | =8.0 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/
- https://github.com/WordPress/WordPress/commit/246a70bdbfac3bd45ff71c7941deef1bb206b19a
- https://security-tracker.debian.org/tracker/CVE-2018-20149
- http://www.securityfocus.com/bid/106220
- https://codex.wordpress.org/Version_4.9.9
- https://lists.debian.org/debian-lts-announce/2019/02/msg00019.html
- https://wordpress.org/support/wordpress-version/version-5-0-1/
- https://wpvulndb.com/vulnerabilities/9175
- https://www.debian.org/security/2019/dsa-4401
- https://www.zdnet.com/article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords/
Frequently Asked Questions
What is the severity of CVE-2018-20149?
CVE-2018-20149 is rated as a moderate severity vulnerability that could allow for cross-site scripting (XSS) attacks.
How do I fix CVE-2018-20149?
To fix CVE-2018-20149, update WordPress to version 5.0.1 or later, or ensure you are using an unaffected version.
Which versions of WordPress are affected by CVE-2018-20149?
CVE-2018-20149 affects WordPress versions prior to 4.9.9 and versions between 5.0.0 and 5.0.1.
Can CVE-2018-20149 be exploited by unauthenticated users?
Yes, CVE-2018-20149 can be exploited by unauthenticated users who can upload files.
What type of attacks does CVE-2018-20149 enable?
CVE-2018-20149 can enable cross-site scripting (XSS) attacks through the upload of crafted files.
- collector/security-tracker-debian
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- package-manager/debian
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- version/debian gnu/linux/8.0
- version/debian gnu/linux/9.0