CVE-2021-32855
MEDIUMCVSS 6.1/10EPSS 0.58%
Last modified
CVE-2021-32855 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Vditor is a browser-side Markdown editor. Versions prior to 3.8.7 are vulnerable to copy-paste cross-site scripting (XSS). EPSS estimates a 0.58% chance of exploitation in the next 30 days.
Description
Vditor is a browser-side Markdown editor. Versions prior to 3.8.7 are vulnerable to copy-paste cross-site scripting (XSS). For this particular type of XSS, the victim needs to be fooled into copying a malicious payload into the text editor. Version 3.8.7 contains a patch for this issue.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| B3log | Vditor | < 3.8.7 |
References
- https://github.com/Vanessa219/vditor/commit/1b2382d7f8a4ee509d9245db4450d926a0b24146Patch, Third Party Advisory
- https://github.com/Vanessa219/vditor/issues/1085Issue Tracking, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2021-1006-vditor/Exploit, Third Party Advisory
- https://github.com/Vanessa219/vditor/commit/1b2382d7f8a4ee509d9245db4450d926a0b24146Patch, Third Party Advisory
- https://github.com/Vanessa219/vditor/issues/1085Issue Tracking, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2021-1006-vditor/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-32855?
Vditor is a browser-side Markdown editor. Versions prior to 3.8.7 are vulnerable to copy-paste cross-site scripting (XSS). For this particular type of XSS, the victim needs to be fooled into copying a malicious payload into the text editor. Version 3.8.7 contains a patch for this issue.
How severe is CVE-2021-32855?
CVE-2021-32855 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.
How do I fix CVE-2021-32855?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-32855?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
