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/'
Published Aug 27, 2021
5.1
MEDIUMCVSS 4.0
EPSS 1.13%
Description
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
5.1 MEDIUM GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Active
Vulnerable System Confidentiality None
Vulnerable System Integrity None
Vulnerable System Availability None
Subsequent System Confidentiality Low
Subsequent System Integrity Low
Subsequent System Availability None
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.13% 0.01128
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01128
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.13% (0.01128) | 65.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.08% (0.01083) | 60.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00427) | 60.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00129) | 49.45th | v3 (v2023.03.01) |
| May 12, 2024 | 0.12% (0.00120) | 45.89th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.11% (0.00108) | 42.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00115) | 43.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.16% (0.01156) | 61.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.16% (0.01156) | 58.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.65% (0.06652) | 78.71th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.99% (0.03991) | 73.89th | v1 |
| Jan 6, 2022 | 3.99% (0.03991) | 73.67th | v1 |
| Jan 5, 2022 | 0.92% (0.00918) | 61.99th | v5 (v2026.06.15) |
| Aug 28, 2021 | 0.92% (0.00918) | 0.00th | v1 |
Weaknesses (1)
References (5)
- https://github.com/advisories/GHSA-fpv7-hx6r-9vcx Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/mezzanine/PYSEC-2021-343.yaml
- https://github.com/stephenmcd/mezzanine/blob/v6.0.0/mezzanine/blog/templates/blog/blog_post_list.html#L112
- https://github.com/stephenmcd/mezzanine/issues/1921 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-19002
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-fpv7-hx6r-9vcx | Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/mezzanine/PYSEC-2021-343.yaml | ||
| https://github.com/stephenmcd/mezzanine/blob/v6.0.0/mezzanine/blog/templates/blog/blog_post_list.html#L112 | ||
| https://github.com/stephenmcd/mezzanine/issues/1921 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-19002 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 27, 2021
Updated Aug 4, 2024
Reserved Aug 13, 2020
Link CVE-2020-19002
CISA Vulnrichment
GHSA-FPV7-HX6R-9VCX Updated n/a