Vulnerability-Lookup

GHSA-R549-HX7W-7XR9

Vulnerability from github – Published: 2026-05-16 18:31 – Updated: 2026-05-16 18:31

Details

CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users with Content Manager access to inject malicious scripts through SVG file uploads. Attackers can upload SVG files containing embedded JavaScript to the file manager, which executes when other authenticated users access the uploaded file, enabling cookie theft and session hijacking.

Severity

6.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2020-37238"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-16T16:16:19Z",
    "severity": "MODERATE"
  },
  "details": "CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users with Content Manager access to inject malicious scripts through SVG file uploads. Attackers can upload SVG files containing embedded JavaScript to the file manager, which executes when other authenticated users access the uploaded file, enabling cookie theft and session hijacking.",
  "id": "GHSA-r549-hx7w-7xr9",
  "modified": "2026-05-16T18:31:37Z",
  "published": "2026-05-16T18:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37238"
    },
    {
      "type": "WEB",
      "url": "https://www.cmsmadesimple.org"
    },
    {
      "type": "WEB",
      "url": "https://www.cmsmadesimple.org/downloads"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/49199"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/cms-made-simple-stored-xss-via-svg-file-upload"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2020-37238 (GCVE-0-2020-37238)

Vulnerability from cvelistv5 – Published: 2026-05-16 15:25 – Updated: 2026-05-24 01:36

Title

CMS Made Simple 2.2.15 Stored XSS via SVG File Upload

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

6.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck

References

4 references

URL	Tags
https://www.exploit-db.com/exploits/49199	exploit
https://www.cmsmadesimple.org/	product
https://www.cmsmadesimple.org/downloads	product
https://www.vulncheck.com/advisories/cms-made-sim…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Cmsmadesimple	CMS Made Simple	Affected: 2.2.15

Date Public

2020-04-12 00:00

Credits

Eshan Singh

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "metrics": [
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              "content": {
                "id": "CVE-2020-37238",
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                  },
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T17:05:59.354644Z",
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            }
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-R549-HX7W-7XR9

CVE-2020-37238 (GCVE-0-2020-37238)

Tags

Sightings

Nomenclature