How severe is CVE-2019-25311?

CVE-2019-25311 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-25311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25311?

CVE-2019-25311 affects Kostasmitroglou Thesystem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2019-25311 have an EU (EUVD) identifier?

Yes. CVE-2019-25311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19413.

When was CVE-2019-25311 published?

CVE-2019-25311 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2019-25311

CVE-2019-25311 is a medium-severity vulnerability in Kostasmitroglou Thesystem with a CVSS 3.x base score of 6.4. 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 6.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-19413
Weakness: CWE-79
Affected product: Kostasmitroglou Thesystem
Published: 2026-02-11
Last modified: 2026-06-17

Description

thesystem version 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts through multiple server data input fields. Attackers can submit crafted script payloads in operating_system, system_owner, system_username, system_password, system_description, and server_name parameters to execute arbitrary JavaScript in victim browsers.

Frequently asked questions

What is CVE-2019-25311?: thesystem version 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts through multiple server data input fields. Attackers can submit crafted script payloads in operating_system, system_owner, system_username, system_password, system_description, and server_name parameters to execute arbitrary JavaScript in victim browsers.
How severe is CVE-2019-25311?: CVE-2019-25311 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-25311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25311?: CVE-2019-25311 affects Kostasmitroglou Thesystem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2019-25311 have an EU (EUVD) identifier?: Yes. CVE-2019-25311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19413.
When was CVE-2019-25311 published?: CVE-2019-25311 was published on 2026-02-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kostasmitroglou:thesystem:1.0.0:*:*:*:*:*:*:*

More vulnerabilities in Kostasmitroglou Thesystem

CVE-2019-25441 — Critical (CVSS 9.8): thesystem 1.0 contains a command injection vulnerability that allows unauthenticated attackers to execute arbitrary…

All CVEs affecting Kostasmitroglou Thesystem →

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 →