CVE-2023-26820: siteproxy v1.0 was discovered to contain a path traversal vulnerability via the component index.js.

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2023-26820 is a high-severity flaw (CVSS 7.5) affecting siteproxy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

siteproxy v1.0 was discovered to contain a path traversal vulnerability via the component index.js.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-22
Published	2023-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: siteproxy project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-07 03:15 UTCPublished CVE record published
2026-06-17 05:43 UTCUpdated Record last modified

siteproxy project siteproxy DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy siteproxy || rpm -q siteproxy || siteproxy --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison siteproxy sudo apt install siteproxy=<VERSION_BEFORE_1.0> sudo apt-mark hold siteproxy

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list siteproxy sudo dnf downgrade siteproxy-<VERSION_BEFORE_1.0> sudo dnf versionlock add siteproxy

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-26820?

siteproxy: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26820 being exploited?

CVE-2023-26820 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-26820 affect?

CVE-2023-26820 affects siteproxy. Severity is high (CVSS 7.5). siteproxy v1.0 was discovered to contain a path traversal vulnerability via the component index.js.

How urgent is CVE-2023-26820?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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