CVE-2020-21357
CVE-2020-21357 is a medium-severity vulnerability in Popojicms with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Popojicms
- Published:
- Last modified:
Description
A stored cross site scripting (XSS) vulnerability in /admin.php?mod=user&act=addnew of PopojiCMS 1.2 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the E-Mail field.
Frequently asked questions
- What is CVE-2020-21357?
- A stored cross site scripting (XSS) vulnerability in /admin.php?mod=user&act=addnew of PopojiCMS 1.2 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the E-Mail field.
- How severe is CVE-2020-21357?
- CVE-2020-21357 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-21357 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21357?
- CVE-2020-21357 affects Popojicms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-21357?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-21357 published?
- CVE-2020-21357 was published on 2021-08-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:popojicms:popojicms:1.2:*:*:*:*:*:*:*
More vulnerabilities in Popojicms
- CVE-2018-18934 — Critical (CVSS 9.8): An issue was discovered in PopojiCMS v2.0.1. admin_component.php is exploitable via the…
- CVE-2022-47766 — High (CVSS 8.8): PopojiCMS v2.0.1 backend plugin function has a file upload vulnerability.
- CVE-2019-9549 — High (CVSS 8.8): An issue was discovered in PopojiCMS v2.0.1. It has CSRF via the po-admin/route.php?mod=user&act=addnew URI, as…
- CVE-2018-18935 — High (CVSS 8.8): An issue was discovered in PopojiCMS v2.0.1. It has CSRF via the po-admin/route.php?mod=component&act=addnew URI, as…
- CVE-2018-18936 — High (CVSS 7.5): An issue was discovered in PopojiCMS v2.0.1. admin_library.php allows remote attackers to delete arbitrary files via…
- CVE-2024-58284 — High (CVSS 7.2): PopojiCMS 2.0.1 contains an authenticated remote command execution vulnerability that allows administrative users to…
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