CVE-2021-34582
CVE-2021-34582 is a medium-severity vulnerability in Phoenixcontact Fl Mguard 1102 Firmware with a CVSS 3.x base score of 4.8. 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 4.8)
- CVSS v2: 3.5
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Phoenixcontact Fl Mguard 1102 Firmware
- Published:
- Last modified:
Description
In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 a user with high privileges can inject HTML code (XSS) through web-based management or the REST API with a manipulated certificate file.
Frequently asked questions
- What is CVE-2021-34582?
- In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 a user with high privileges can inject HTML code (XSS) through web-based management or the REST API with a manipulated certificate file.
- How severe is CVE-2021-34582?
- CVE-2021-34582 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-34582 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-34582?
- CVE-2021-34582 primarily affects Phoenixcontact Fl Mguard 1102 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-34582?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-34582 published?
- CVE-2021-34582 was published on 2021-11-10 and last updated on 2026-06-17.
References
Affected products (6)
- cpe:2.3:o:phoenixcontact:fl_mguard_1102_firmware:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:phoenixcontact:fl_mguard_1102_firmware:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:o:phoenixcontact:fl_mguard_1102_firmware:1.5.0:*:*:*:*:*:*:*
- cpe:2.3:o:phoenixcontact:fl_mguard_1105_firmware:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:phoenixcontact:fl_mguard_1105_firmware:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:o:phoenixcontact:fl_mguard_1105_firmware:1.5.0:*:*:*:*:*:*:*
More vulnerabilities in Phoenixcontact Fl Mguard 1102 Firmware
- CVE-2021-34598 — High (CVSS 7.5): In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 the remote logging functionality is…
All CVEs affecting Phoenixcontact Fl Mguard 1102 Firmware →
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
- CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
- CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
- CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
- CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
- CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
- CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…
Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →