XSS in Mybb Like Plugin
CVE-2018-25247
MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability. Authenticated attackers can inject script payloads into post or thread subjects; when other users view a profile that displays the attacker's liked posts, the unsanitized subject is rendered, executing the script in the viewer's browser.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Mybb Like Plugin — versions 3.0.0
- Mybb Thankyou\/like System
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/45179 (Exploit, VDB Entry, exploit)
- community.mybb.com/mods.php (Product, product)
- www.vulncheck.com/advisories/mybb-like-plugin-cross-site-scripting-via-user-pro… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2018-25247?
- CVE-2018-25247 is a medium-severity vulnerability in Mybb Like Plugin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-04.
- How severe is CVE-2018-25247?
- Medium severity. CVSS v3 base score is 6.1 out of 10.