How severe is CVE-2018-17830?

CVE-2018-17830 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-2018-17830 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17830?

CVE-2018-17830 affects Redaxo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17830?

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

When was CVE-2018-17830 published?

CVE-2018-17830 was published on 2018-10-01 and last updated on 2026-06-17.

CVE-2018-17830

CVE-2018-17830 is a medium-severity vulnerability in Redaxo 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 v2: 3.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Redaxo
Published: 2018-10-01
Last modified: 2026-06-17

Description

The $args variable in addons/mediapool/pages/index.php in REDAXO 5.6.2 is not effectively filtered, because names are not restricted (only values are restricted). The attacker can insert XSS payloads via an index.php?page=mediapool/media&opener_input_field=&args[ substring.

Frequently asked questions

What is CVE-2018-17830?: The $args variable in addons/mediapool/pages/index.php in REDAXO 5.6.2 is not effectively filtered, because names are not restricted (only values are restricted). The attacker can insert XSS payloads via an index.php?page=mediapool/media&opener_input_field=&args[ substring.
How severe is CVE-2018-17830?: CVE-2018-17830 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-2018-17830 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17830?: CVE-2018-17830 affects Redaxo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17830?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-17830 published?: CVE-2018-17830 was published on 2018-10-01 and last updated on 2026-06-17.

References

https://github.com/redaxo/redaxo4/issues/421

Affected products (1)

cpe:2.3:a:redaxo:redaxo:5.6.2:*:*:*:*:*:*:*

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