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No exploitation reportedFix available

CVE-2020-7758

No exploitation reported by the sources we read.

  • Published2020-11-02
  • Fixed in1.43.0
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

This affects versions of package browserless-chrome before 1.40.2-chrome-stable. User input flowing from the workspace endpoint gets used to create a file path filePath and this is fetched and then sent back to a user. This can be escaped to fetch arbitrary files from a server.

Timeline

dates in UTC
  1. 2020-11-0222:15CVE publishedNVD

Versions per branch

OSV · NVD
browserless-chrome
BranchAffectedFixed in
1.43< 1.43.01.43.0
Browserless chrome
BranchAffectedFixed in
1.40< 1.40.21.40.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update browserless-chrome to 1.43.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.17.5known since 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score2.2 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2021-04-20

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2020-11-02
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8p9r-f949-699g

Frequently asked questions

What is CVE-2020-7758?

This affects versions of package browserless-chrome before 1.40.2-chrome-stable. User input flowing from the workspace endpoint gets used to create a file path filePath and this is fetched and then sent back to a user. This can be escaped to fetch arbitrary files from a server.

Is CVE-2020-7758 actively exploited?

Active exploitation of CVE-2020-7758 has not been confirmed. Its EPSS score was 2.2% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-7758?

CVE-2020-7758 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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