CVE-2026-21624
CVE-2026-21624 is a medium-severity vulnerability in Stackideas Easydiscuss with a CVSS 3.x base score of 5.4. 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 5.4)
- CVSS v4: 9.4
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-2938
- Weakness: CWE-79
- Affected product: Stackideas Easydiscuss
- Published:
- Last modified:
Description
Lack of input filterung leads to a persistent XSS vulnerability in the user avatar text handling of the Easy Discuss component for Joomla.
Frequently asked questions
- What is CVE-2026-21624?
- Lack of input filterung leads to a persistent XSS vulnerability in the user avatar text handling of the Easy Discuss component for Joomla.
- How severe is CVE-2026-21624?
- CVE-2026-21624 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-21624 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-21624?
- CVE-2026-21624 affects Stackideas Easydiscuss. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-21624?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-21624 have an EU (EUVD) identifier?
- Yes. CVE-2026-21624 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2938.
- When was CVE-2026-21624 published?
- CVE-2026-21624 was published on 2026-01-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:stackideas:easydiscuss:*:*:*:*:*:joomla\!:*:*
More vulnerabilities in Stackideas Easydiscuss
- CVE-2026-21625 — High (CVSS 8.8): User provided uploads to the Easy Discuss component for Joomla aren't properly validated. Uploads are purely checked by…
- CVE-2026-21626 — High (CVSS 7.5): Access control settings for forum post custom fields are not applied to the JSON output type, leading to an ACL…
- CVE-2023-51810 — High (CVSS 7.5): SQL injection vulnerability in StackIdeas EasyDiscuss v.5.0.5 and fixed in v.5.0.10 allows a remote attacker to obtain…
- CVE-2026-21623 — Medium (CVSS 5.4): Lack of input filterung leads to a persistent XSS vulnerability in the forum post handling of the Easy Discuss…
- CVE-2018-5263 — Medium (CVSS 5.4): The StackIdeas EasyDiscuss (aka com_easydiscuss) extension before 4.0.21 for Joomla! allows XSS.
All CVEs affecting Stackideas Easydiscuss →
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