CVE-2019-13187: The Rich Text Formatter (Redactor) extension through v1.1.1 for Symphony CMS has an Unauthenticated arbitrary

Q: How do I fix CVE-2019-13187?

rich text formatter: upgrade to newer than 1.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2019-13187 being exploited?

CVE-2019-13187 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-13187 affect?

CVE-2019-13187 affects rich text formatter. Severity is critical (CVSS 9.8). 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.

Q: How urgent is CVE-2019-13187?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2019-13187 is a critical-severity flaw (CVSS 9.8) affecting rich text formatter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-434
Published	2019-09-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: symphonyextensions

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-09-05 18:15 UTCPublished CVE record published
2026-06-17 02:16 UTCUpdated Record last modified

symphonyextensions rich text formatter UPGRADE

Affected: <= 1.1.1

Fixed in: newer than 1.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rich-text-formatter || rpm -q rich-text-formatter || rich-text-formatter --version

2. UPGRADE to newer than 1.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rich-text-formatter

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rich-text-formatter

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-13187?

rich text formatter: upgrade to newer than 1.1.1. Exact commands for each OS are on this page.

Is CVE-2019-13187 being exploited?

CVE-2019-13187 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-13187 affect?

CVE-2019-13187 affects rich text formatter. Severity is critical (CVSS 9.8). 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 urgent is CVE-2019-13187?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

← Back to latest CVEs