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Getsimple Cms CVE-2022-1503

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2022-04-27 cna@vuldb.com
5.4
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAI

A vulnerability, which was classified as problematic, has been found in GetSimple CMS. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability, which was classified as problematic, has been found in GetSimple CMS. Affected by this issue is the file /admin/edit.php of the Content Module. The manipulation of the argument post-content with an input like <script>alert(1)</script> leads to cross site scripting. The attack may be launched remotely but requires authentication. Expoit details have been disclosed within the advisory. Affected products include: Get-Simple Getsimple Cms.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionNVD

A vulnerability, which was classified as problematic, has been found in GetSimple CMS. Affected by this issue is the file /admin/edit.php of the Content Module. The manipulation of the argument post-content with an input like <script>alert(1)</script> leads to cross site scripting. The attack may be launched remotely but requires authentication. Expoit details have been disclosed within the advisory.

Threat Intelligence Overview

EPSS Score
0.6%
Top 54% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.6%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +27
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)NVD

cpe:2.3:a:get-simple:getsimple_cms:-:*:*:*:*:*:*:*
CVE-2014-8722 HIGH POC
7.5 Mar 17

GetSimple CMS 3.3.4 allows remote attackers to obtain sensitive information via a direct request to (1) data/users/<user

CVE-2019-11231 CRITICAL POC
9.8 May 22

An issue was discovered in GetSimple CMS through 3.3.15. Rated critical severity (CVSS 9.8), this vulnerability is remot

CVE-2022-41544 CRITICAL POC
9.8 Oct 18

GetSimple CMS v3.3.16 was discovered to contain a remote code execution (RCE) vulnerability via the edited_file paramete

CVE-2026-28495 CRITICAL POC
9.6 Mar 10

GetSimple CMS massiveAdmin plugin has a CSRF vulnerability enabling attackers to perform admin actions through crafted m

CVE-2018-17103 HIGH POC
8.8 Sep 16

An issue was discovered in GetSimple CMS v3.3.13. Rated high severity (CVSS 8.8), this vulnerability is remotely exploit

CVE-2026-27161 HIGH POC
7.5 Feb 21

Unauthenticated attackers can access sensitive files in GetSimple CMS when Apache's AllowOverride directive is disabled,

CVE-2026-27202 HIGH POC
7.5 Feb 21

Arbitrary file read vulnerability in GetSimple CMS affects all versions through its Uploaded Files feature, allowing una

CVE-2020-23839 MEDIUM POC
6.1 Sep 01

A Reflected Cross-Site Scripting (XSS) vulnerability in GetSimple CMS v3.3.16, in the admin/index.php login portal webpa

CVE-2018-16325 MEDIUM POC
6.1 Sep 01

There is XSS in GetSimple CMS 3.4.0.9 via the admin/edit.php title field. Rated medium severity (CVSS 6.1), this vulnera

CVE-2018-9173 MEDIUM POC
6.1 Apr 02

Cross-site scripting (XSS) vulnerability in admin/template/js/uploadify/uploadify.swf in GetSimple CMS 3.3.13 allows rem

CVE-2024-55085 CRITICAL
9.8 Dec 16

GetSimple CMS CE 3.3.19 suffers from arbitrary code execution in the template editing function in the background managem

CVE-2026-27147 MEDIUM POC
5.4 Feb 21

GetSimple CMS allows authenticated users to upload SVG files containing malicious JavaScript through the administrative

References

Advisories & patches

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