CVE-2019-8935: Collabtive 3.1 allows XSS via the manageuser.php?action=profile id parameter.

Routine

MEDIUM 5.4DOWNGRADE

CVE-2019-8935 is a medium-severity flaw (CVSS 5.4) affecting collabtive. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Collabtive 3.1 allows XSS via the manageuser.php?action=profile id parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-02-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: o-dyn

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

Am I affected?

Timeline

2019-02-19 15:29 UTCPublished CVE record published
2026-06-17 02:42 UTCUpdated Record last modified

o-dyn collabtive DOWNGRADE

Affected: 3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1

1. Check installed version

apt-cache policy collabtive || rpm -q collabtive || collabtive --version

2. No fixed release: DOWNGRADE to a release before 3.1 (Debian / Ubuntu)

apt-cache madison collabtive sudo apt install collabtive=<VERSION_BEFORE_3.1> sudo apt-mark hold collabtive

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list collabtive sudo dnf downgrade collabtive-<VERSION_BEFORE_3.1> sudo dnf versionlock add collabtive

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2019-8935?

collabtive: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-8935 being exploited?

CVE-2019-8935 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-2019-8935 affect?

CVE-2019-8935 affects collabtive. Severity is medium (CVSS 5.4). Collabtive 3.1 allows XSS via the manageuser.php?action=profile id parameter.

How urgent is CVE-2019-8935?

Priority 37/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-3298 MEDIUM 5.4 DOWNGRADE Collabtive 3.1 allows XSS when an authenticated user enters an XSS payload into the address section of the pro
CVE-2020-13655 MEDIUM 6.1 DOWNGRADE An issue was discovered in Collabtive 3.0 and later
CVE-2015-0258 HIGH 8.8 UPGRADE MITIGATE Multiple incomplete blacklist vulnerabilities in the avatar upload functionality in manageuser.php in Collabti
CVE-2014-3247 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in Collabtive 1.2 allows remote authenticated users to inject arbitra
CVE-2014-3246 MEDIUM 6.5 DOWNGRADE SQL injection vulnerability in Collabtive 1.2 allows remote authenticated users to execute arbitrary SQL comma

References

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