How severe is CVE-2019-13187?

CVE-2019-13187 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-13187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13187?

CVE-2019-13187 affects Symphonyextensions Rich Text Formatter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13187?

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

When was CVE-2019-13187 published?

CVE-2019-13187 was published on 2019-09-05 and last updated on 2026-06-17.

CVE-2019-13187

CVE-2019-13187 is a critical-severity vulnerability in Symphonyextensions Rich Text Formatter with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Symphonyextensions Rich Text Formatter
Published: 2019-09-05
Last modified: 2026-06-17

Description

The Rich Text Formatter (Redactor) extension through v1.1.1 for Symphony CMS has an Unauthenticated arbitrary file upload vulnerability in content.fileupload.php and content.imageupload.php.

Frequently asked questions

What is CVE-2019-13187?: The Rich Text Formatter (Redactor) extension through v1.1.1 for Symphony CMS has an Unauthenticated arbitrary file upload vulnerability in content.fileupload.php and content.imageupload.php.
How severe is CVE-2019-13187?: CVE-2019-13187 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-13187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13187?: CVE-2019-13187 affects Symphonyextensions Rich Text Formatter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-13187 published?: CVE-2019-13187 was published on 2019-09-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:symphonyextensions:rich_text_formatter:*:*:*:*:*:*:*:*

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