CVE-2020-19002

Mezzanine Cross Site Scripting (XSS) vulnerability

6.1 Medium

Cross Site Scripting (XSS) in Mezzanine v4.3.1 allows remote attackers to execute arbitrary code via the 'Description' field of the component 'admin/blog/blogpost/add/'. This issue is different than CVE-2018-16632.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.12%Up 0.2 points since Aug 28, 2021

What each source reports

NVD Score used 6.1

Record: CVE-2020-19002
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-19002
Updated: 2026-11-02

EUVDEUVD-2021-0134 No score

Record: EUVD-2021-0134
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fpv7-hx6r-9vcx 5.1

Mezzanine Cross Site Scripting (XSS) vulnerability

Cross Site Scripting (XSS) in Mezzanine v4.3.1 allows remote attackers to execute arbitrary code via the Description field of the component admin/blog/blogpost/add/. This issue is different than CVE-2018-16632.

Record: GHSA-fpv7-hx6r-9vcx
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2020-19002
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-fpv7-hx6r-9vcx 5.1

Mezzanine Cross Site Scripting (XSS) vulnerability

Record: GHSA-fpv7-hx6r-9vcx
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVPYSEC-2021-343 No score

Record: PYSEC-2021-343
Updated: 2026-11-02

Affected products

jupo mezzanine

Affected packages

Affected packages
Package	Affected	Fixed
`mezzanine` PyPI	through 6.0.0	None known
`mezzanine` PyPI	through 6.0.0, plus listed versions 0.10.1.10.1.20.1.30.1.4 Show 45 moreShow less 0.100.10.10.10.20.10.30.10.40.10.50.10.60.110.11.10.11.100.11.20.11.30.11.40.11.50.11.60.11.70.11.80.11.90.120.12.10.12.20.12.30.12.40.12.50.20.2.10.2.20.2.30.2.40.3.00.3.10.3.20.3.30.3.40.3.50.40.5.10.5.20.5.30.5.40.60.6.10.6.20.6.30.6.4	None known
`mezzanine` PyPI	All versions, plus listed versions 0.10.1.10.1.20.1.30.1.4 Show 45 moreShow less 0.100.10.10.10.20.10.30.10.40.10.50.10.60.110.11.10.11.100.11.20.11.30.11.40.11.50.11.60.11.70.11.80.11.90.120.12.10.12.20.12.30.12.40.12.50.20.2.10.2.20.2.30.2.40.3.00.3.10.3.20.3.30.3.40.3.50.40.5.10.5.20.5.30.5.40.60.6.10.6.20.6.30.6.4	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-2020-19002 is a medium vulnerability (CVSS 6.1) in Jupo Mezzanine, published August 27, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 178 versions. The JSON record has them.