CVE-2018-16551

Stored XSS in LavaLite 5.5

5.4 MediumFix available

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.67%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 5.4

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: CVE-2018-16551
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: CVE-2018-16551
Updated: 2026-11-02

EUVDEUVD-2022-4857 No score

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: EUVD-2022-4857
Updated: 2026-11-03

GitHub AdvisoriesGHSA-pxxp-283v-xpq5 5.4

Stored XSS in LavaLite 5.5

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: GHSA-pxxp-283v-xpq5
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 5.4

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: CVE-2018-16551
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-pxxp-283v-xpq5 5.4

Stored XSS in LavaLite 5.5

LavaLite 5.5 has XSS via a /edit URI, as demonstrated by client/job/job/Zy8PWBekrJ/edit.

Record: GHSA-pxxp-283v-xpq5
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

lavalite

Affected packages

Affected packages
Package	Affected	Fixed
`lavalite/cms` Packagist	before 5.5	5.5
`lavalite/cms` Packagist	All versions, plus listed versions 5.5.05.5.15.5.25.5.35.5.4 Show 45 moreShow less 5.5.55.5.65.5.75.5.85.5.95.6.15.6.25.7.05.7.15.7.25.7.35.7.4v10.0.0v10.0.1v10.0.2v10.0.3v10.0.4v10.0.5v10.0.6v10.1.0v10.1.1v10.1.2v5.0.0v5.1.0v5.1.1v5.2.0v5.2.1v5.2.2v5.2.3v5.2.4v5.3.0v5.3.1v5.3.2v5.3.3v5.3.4v5.3.5v5.3.6v5.3.7v5.4.0v5.4.1v5.4.2v5.4.3v5.4.4v5.4.5v5.8.0	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-16551 is a medium vulnerability (CVSS 5.4) in Lavalite, published September 5, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile. Fixed in lavalite/cms 5.5.

References

This page doesn't list everything

Left out here: 7 versions. The JSON record has them.