CVE-2021-24545

The WP HTML Author Bio WordPress plugin through 1.2.0 does not sanitise the HTML allowed in the Bio of users, allowing them to use malicious JavaScript code, which will be executed when anyone visit a post in the frontend made by such user. As a result, user with a role as low as author could perform Cross-Site Scripting attacks against users, which could potentially lead to privilege escalation when an admin view the related post/s.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

1.80% chance of exploitation in the next 30 days, 77th percentile

Published

2021-10-11

Updated

2024-08-03

Proof-of-concept exploits (3)

• https://wpscan.com/vulnerability/64267134-9d8c-4e0c-b24f-d18692a5775e
• V35HR4J/CVE-2021-245452★ · 2021-10-05
• dnr6419/CVE-2021-245450★ · 2021-11-03

References

• CVE Record
• NVD entry

Related

• CVE-2021-24563
• CVE-2022-1051
• CVE-2022-1597
• CVE-2022-1598
• CVE-2018-16167
• CVE-2018-6905