CVE-2026-33628: Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel

Q: How do I fix CVE-2026-33628?

invoice ninja: upgrade to 5.13.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-33628 being exploited?

CVE-2026-33628 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33628 affect?

CVE-2026-33628 affects invoice ninja. Severity is medium (CVSS 5.4). Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Invoice line item descriptions in Invoice Ninja v5.13.0 bypass the XSS denylist filter, allowing stored XSS payloads to execute when invoi

Q: How urgent is CVE-2026-33628?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2026-33628 is a medium-severity flaw (CVSS 5.4) affecting invoice ninja. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Invoice line item descriptions in Invoice Ninja v5.13.0 bypass the XSS denylist filter, allowing stored XSS payloads to execute when invoices are rendered in the PDF preview or client portal. The line item description field was not passed through `purify::clean()` before rendering. This is fixed in v5.13.4 by the vendor by adding `purify::clean()

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

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 85%)
CISA exploited list	No
Weakness	CWE-79, CWE-116, CWE-184
Published	2026-03-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: invoiceninja

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

Am I affected?

Timeline

2026-03-26 21:17 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

invoiceninja invoice ninja UPGRADE

Affected: < 5.13.4

Fixed in: 5.13.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy invoice-ninja || rpm -q invoice-ninja || invoice-ninja --version

2. UPGRADE to 5.13.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade invoice-ninja

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade invoice-ninja

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-33628?

invoice ninja: upgrade to 5.13.4. Exact commands for each OS are on this page.

Is CVE-2026-33628 being exploited?

CVE-2026-33628 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-2026-33628 affect?

CVE-2026-33628 affects invoice ninja. Severity is medium (CVSS 5.4). Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Invoice line item descriptions in Invoice Ninja v5.13.0 bypass the XSS denylist filter, allowing stored XSS payloads to execute when invoi

How urgent is CVE-2026-33628?

Priority 23/100. No elevated risk signals yet.

Software pages

Laravel vulnerabilities

Related CVEs

CVE-2026-33742 MEDIUM 5.4 UPGRADE Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel
CVE-2026-29925 HIGH 7.7 DOWNGRADE Invoice Ninja v5.12.46 and v5.12.48 is vulnerable to Server-Side Request Forgery (SSRF) in CheckDatabaseReques

References

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