CVE-2023-27075: A cross-site scripting vulnerability (XSS) in the component microbin/src/pasta.rs of Microbin v1.2.0 allows at

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-27075 is a medium-severity flaw (CVSS 5.4) affecting microbin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cross-site scripting vulnerability (XSS) in the component microbin/src/pasta.rs of Microbin v1.2.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-05-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: microbin

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

Am I affected?

Timeline

2023-05-04 02:15 UTCPublished CVE record published
2026-06-17 05:44 UTCUpdated Record last modified

microbin microbin DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison microbin sudo apt install microbin=<VERSION_BEFORE_1.2.0> sudo apt-mark hold microbin

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

dnf --showduplicates list microbin sudo dnf downgrade microbin-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add microbin

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-2023-27075?

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

Is CVE-2023-27075 being exploited?

CVE-2023-27075 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-2023-27075 affect?

CVE-2023-27075 affects microbin. Severity is medium (CVSS 5.4). A cross-site scripting vulnerability (XSS) in the component microbin/src/pasta.rs of Microbin v1.2.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

How urgent is CVE-2023-27075?

Priority 33/100. Public exploit reference

References

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