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CVE-2020-18658

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to...

6.1 Medium

CVE-2020-18658 is a medium vulnerability (CVSS 6.1) in Get-simple Getsimplecms, published June 23, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.

What does this mean?
Severity
6.1 MediumCVSS 3.1, NVD
Exploit chance
1.37%EPSS, 72nd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

1.37%Up 0.5 points since Jun 24, 2021
90%50%10%1%

Affected products

What each source reports

NVD Score used6.1

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Record
CVE-2020-18658
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE ListNo score

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Record
CVE-2020-18658
Updated
2026-11-02
EUVDEUVD-2020-10582No score

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Record
EUVD-2020-10582
Updated
2026-11-03
GitHub AdvisoriesGHSA-mccm-p9hj-f8fqNo score

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to...

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Record
GHSA-mccm-p9hj-f8fq
Weakness
CWE-79
Updated
2026-11-02
OSV6.1

Cross Site Scriptiong (XSS) vulnerability in GetSimpleCMS <=3.3.15 via the timezone parameter to settings.php.

Record
CVE-2020-18658
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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