CVE-2023-53903: WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to up

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-53903 is a medium-severity flaw (CVSS 5.4) affecting websitebaker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG files with script tags that execute when the file is viewed, enabling persistent cross-site scripting attacks.

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	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-12-16
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: websitebaker

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

Am I affected?

Timeline

2025-12-16 17:16 UTCPublished CVE record published
2026-06-17 06:46 UTCUpdated Record last modified

websitebaker websitebaker DOWNGRADE

Affected: 2.13.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.13.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.13.3 (Debian / Ubuntu)

apt-cache madison websitebaker sudo apt install websitebaker=<VERSION_BEFORE_2.13.3> sudo apt-mark hold websitebaker

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

dnf --showduplicates list websitebaker sudo dnf downgrade websitebaker-<VERSION_BEFORE_2.13.3> sudo dnf versionlock add websitebaker

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-2023-53903?

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

Is CVE-2023-53903 being exploited?

CVE-2023-53903 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-2023-53903 affect?

CVE-2023-53903 affects websitebaker. Severity is medium (CVSS 5.4). WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG files with script tags that execute when the f

How urgent is CVE-2023-53903?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2023-53953 MEDIUM 5.4 DOWNGRADE WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to in
CVE-2023-53902 MEDIUM 6.5 DOWNGRADE WebsiteBaker 2.13.3 contains a directory traversal vulnerability that allows authenticated attackers to delete
CVE-2021-47788 HIGH 8.8 DOWNGRADE WebsiteBaker 2.13.0 contains an authenticated remote code execution vulnerability that allows users with langu

References

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