How severe is CVE-2026-49049?

CVE-2026-49049 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-49049 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49049?

CVE-2026-49049 affects Ollyo Helix3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49049?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-49049 published?

CVE-2026-49049 was published on 2026-06-29 and last updated on 2026-06-30.

CVE-2026-49049

CVE-2026-49049 is a high-severity vulnerability in Ollyo Helix3 with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 28% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Ollyo Helix3
Published: 2026-06-29
Last modified: 2026-06-30

Description

The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete arbitrary files, write arbitrary JSON files and update template parameters.

Frequently asked questions

What is CVE-2026-49049?: The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete arbitrary files, write arbitrary JSON files and update template parameters.
How severe is CVE-2026-49049?: CVE-2026-49049 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-49049 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49049?: CVE-2026-49049 affects Ollyo Helix3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49049?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-49049 published?: CVE-2026-49049 was published on 2026-06-29 and last updated on 2026-06-30.

References

https://www.joomshaper.com/

Affected products (1)

cpe:2.3:a:ollyo:helix3:*:*:*:*:*:joomla\!:*:*

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