GetSimple CMS 3.3.16 allows in parameter 'permalink' on the Settings page persistent Cross Site Scripting which is executed when you create…

published 2020-10-01 6y ago modified 2026-06-17 4mo ago also EUVD-2020-17569

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

GetSimple CMS 3.3.16 allows in parameter 'permalink' on the Settings page persistent Cross Site Scripting which is executed when you create and open a new page

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Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

exploit-db.com https://www.exploit-db.com/exploits/48850 referenced PoC, tagged "exploit" by a source, unverified
youtube.com https://www.youtube.com/watch?v=8IMfD5KGt_U referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

exploit-db.com /exploits/48850
exploit, third-party-advisory, vdb-entry
youtube.com /watch?v=8IMfD5KGt_U
exploit, third-party-advisory
get-simple.info
product

Sources

CVE List CVE-2020-24861
NVD CVE-2020-24861

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.