How severe is CVE-2023-6158?

CVE-2023-6158 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2023-6158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6158?

CVE-2023-6158 primarily affects Myeventon Eventon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-6158?

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

Does CVE-2023-6158 have an EU (EUVD) identifier?

Yes. CVE-2023-6158 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58408.

When was CVE-2023-6158 published?

CVE-2023-6158 was published on 2024-01-10 and last updated on 2026-06-17.

CVE-2023-6158

CVE-2023-6158 is a medium-severity vulnerability in Myeventon Eventon with a CVSS 3.x base score of 6.5. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58408
Weakness: CWE-862
Affected product: Myeventon Eventon
Published: 2024-01-10
Last modified: 2026-06-17

Description

The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the evo_eventpost_update_meta function in all versions up to, and including, 4.5.4 (for Pro) and 2.2.7 (for free). This makes it possible for unauthenticated attackers to update and remove arbitrary post metadata. Note that certain parameters may allow for content injection. CVE-2024-0238 appears to be a duplicate of this issue.

Frequently asked questions

What is CVE-2023-6158?: The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the evo_eventpost_update_meta function in all versions up to, and including, 4.5.4 (for Pro) and 2.2.7 (for free). This makes it possible for unauthenticated attackers to update and remove arbitrary post metadata. Note that certain parameters may allow for content injection. CVE-2024-0238 appears to be a duplicate of this issue.
How severe is CVE-2023-6158?: CVE-2023-6158 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2023-6158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6158?: CVE-2023-6158 primarily affects Myeventon Eventon. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-6158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6158 have an EU (EUVD) identifier?: Yes. CVE-2023-6158 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58408.
When was CVE-2023-6158 published?: CVE-2023-6158 was published on 2024-01-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:myeventon:eventon:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:myeventon:eventon-lite:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Myeventon Eventon

CVE-2023-6244 — Medium (CVSS 6.5): The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery…
CVE-2023-6242 — Medium (CVSS 6.5): The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery…
CVE-2025-3527 — Medium (CVSS 6.4): The EventON Pro plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability…
CVE-2023-7200 — Medium (CVSS 6.1): The EventON WordPress plugin before 4.4.1 does not sanitise and escape a parameter before outputting it back in the…
CVE-2024-0238 — Medium (CVSS 6.1): The EventON Premium WordPress plugin before 4.5.6, EventON WordPress plugin before 2.2.8 do not have authorisation in…
CVE-2024-0233 — Medium (CVSS 6.1): The EventON WordPress plugin before 4.5.5, EventON WordPress plugin before 2.2.7 do not properly sanitise and escape a…

All CVEs affecting Myeventon Eventon →

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