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CVE-2020-5810

47
FAUCET Score

CVE-2020-5810 is a stored Cross-Site Scripting (XSS) vulnerability affecting Umbraco CMS versions 8.9.1 and earlier. An authenticated user with media upload privileges can exploit this by uploading a specially crafted SVG file containing malicious script. This vulnerability has a CVSS score of 5.4 (Medium), indicating it can be exploited over a network with low attack complexity, requiring user interaction, and potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.9.1CPE matchmatch criteria
cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
66.20%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.6620 is in the 100th percentile among its peer group of 15,224 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (7)

esetvendor investigatingvia llm_extracted
hyperledgervendor investigatingvia llm_extracted
mariadbvendor investigatingvia llm_extracted
omronvendor investigatingvia llm_extracted
openrefinevendor investigatingvia llm_extracted
pnpmvendor investigatingvia llm_extracted
twiliovendor investigatingvia llm_extracted

Vendor Advisories (7)

twiliollm-twilio-4c8c1fcc64c00d86MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
esetllm-eset-787826ca10b74f28MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
hyperledgerllm-hyperledger-4163a11af33bceb2MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
pnpmllm-pnpm-b6272fd7dfb7d501MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
omronllm-omron-0073181e8c782311MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
openrefinellm-openrefine-847657bed484274bMEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020
mariadbllm-mariadb-f7106fca295d04f0MEDIUM

Umbraco Cloud CMS Multiple Vulnerabilities

Oct 21, 2020

References

tenable.com / security/research/tra-2020-59
ExploitThird Party Advisory