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CVE-2020-8135

28
FAUCET Score

CVE-2020-8135 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting uppy npm package versions prior to 1.9.3. This flaw allows an unauthenticated attacker to scan internal networks or interact with internal systems. With a CVSS score of 9.8, it poses a high risk due to its network-based attack vector and potential for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.3CPE matchmatch criteria
cpe:2.3:a:uppy:uppy:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.33%
Probability of exploitation in next 30 days
EPSS Percentile
68.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0133 is in the 55th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: @uppy/companionFixed in: 1.9.3

Vendor Advisories (1)

npmGHSA-mm7r-265w-jv6fhigh

Server-Side Request Forgery in @uppy/companion

Sep 3, 2020

References

hackerone.com / reports/786956
ExploitIssue TrackingPatchThird Party Advisory