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Vulnerabilities

Vulnerability · CVE-2025-28102

A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the postContent paramet

Published Apr 21, 2025 · catalog updated Apr 21, 2025 · A cross-site scripting (XSS)

Check this week

CVE-2025-28102 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run A cross-site scripting (XSS).

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A cross-site scripting (XSS)).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
24.00%
Remediation
Vendor / distro source
Affected products
vendor n/a n/a n/a

A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the postContent parameter at /createpost.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a n/a n/an/a

How to fix CVE-2025-28102

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-28102 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run A cross-site scripting (XSS).

Which versions are affected?

Compare what you have installed with n/a n/a n/a n/a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 24.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 21, 2025 · EUVD

    Detected

    A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the postContent parameter at /createpost.

  2. Apr 21, 2025 · EUVD

    Updated

    A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the postContent parameter at /createpost.

Sources

  • CVE.orgVulnerability recordCVE-2025-28102

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-12361

    A cross-site scripting (XSS) vulnerability in flaskBlog v2.6.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the postContent parameter at /createpost.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.