CVE-2020-21353
MEDIUMCVSS 5.4/10EPSS 0.55%
Last modified
CVE-2020-21353 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross site scripting (XSS) vulnerability in /admin/snippets.php of GetSimple CMS 3.4.0a allows attackers to execute arbitrary web scripts or HTML via crafted payload in the Edit Snippets module.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
A stored cross site scripting (XSS) vulnerability in /admin/snippets.php of GetSimple CMS 3.4.0a allows attackers to execute arbitrary web scripts or HTML via crafted payload in the Edit Snippets module.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Get-Simple | Getsimplecms | 3.4.0a |
References
- https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1319Exploit, Third Party Advisory
- https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1319Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-21353?
A stored cross site scripting (XSS) vulnerability in /admin/snippets.php of GetSimple CMS 3.4.0a allows attackers to execute arbitrary web scripts or HTML via crafted payload in the Edit Snippets module.
How severe is CVE-2020-21353?
CVE-2020-21353 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.
How do I fix CVE-2020-21353?
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-2020-21353?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST