CVE-2023-0109: A stored cross-site scripting (XSS) vulnerability was discovered in usememos/memos version 0.9.1

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-0109 is a medium-severity flaw (CVSS 5.4) affecting memos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stored cross-site scripting (XSS) vulnerability was discovered in usememos/memos version 0.9.1. This vulnerability allows an attacker to upload a JavaScript file containing a malicious script and reference it in an HTML file. When the HTML file is accessed, the malicious script is executed. This can lead to the theft of sensitive information, such as login credentials, from users visiting the affected website. The issue has been fixed in versio

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	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-11-15
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: usememos

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

Am I affected?

Timeline

2024-11-15 11:15 UTCPublished CVE record published
2026-06-17 05:24 UTCUpdated Record last modified

usememos memos DOWNGRADE

Affected: 0.9.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.1 (Debian / Ubuntu)

apt-cache madison memos sudo apt install memos=<VERSION_BEFORE_0.9.1> sudo apt-mark hold memos

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

dnf --showduplicates list memos sudo dnf downgrade memos-<VERSION_BEFORE_0.9.1> sudo dnf versionlock add memos

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-2023-0109?

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

Is CVE-2023-0109 being exploited?

CVE-2023-0109 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-2023-0109 affect?

CVE-2023-0109 affects memos. Severity is medium (CVSS 5.4). A stored cross-site scripting (XSS) vulnerability was discovered in usememos/memos version 0.9.1. This vulnerability allows an attacker to upload a JavaScript file containing a malicious script and reference it in an HTML file. When the HTM

How urgent is CVE-2023-0109?

Priority 34/100. Public exploit reference

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References

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