CVE-2017-5962: An issue was discovered in contexts_wurfl (for TYPO3) before 0.4.2

Routine

MEDIUM 6.1DOWNGRADE

CVE-2017-5962 is a medium-severity flaw (CVSS 6.1) affecting contexts wurfl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in contexts_wurfl (for TYPO3) before 0.4.2. The vulnerability exists due to insufficient filtration of user-supplied data in the "force_ua" HTTP GET parameter passed to the "/contexts_wurfl/Library/wurfl-dbapi-1.4.4.0/check_wurfl.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-02-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netresearch

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

Am I affected?

Timeline

2017-02-12 04:59 UTCPublished CVE record published
2026-06-17 01:21 UTCUpdated Record last modified

netresearch contexts wurfl DOWNGRADE

Affected: 0.2.0 alpha · 0.2.1 alpha · 0.2.2 alpha · 0.3.0 alpha · 0.3.1 alpha · 0.4.0 alpha · 0.4.1 alpha

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2.0

1. Check installed version

apt-cache policy contexts-wurfl || rpm -q contexts-wurfl || contexts-wurfl --version

2. No fixed release: DOWNGRADE to a release before 0.2.0 (Debian / Ubuntu)

apt-cache madison contexts-wurfl sudo apt install contexts-wurfl=<VERSION_BEFORE_0.2.0> sudo apt-mark hold contexts-wurfl

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

dnf --showduplicates list contexts-wurfl sudo dnf downgrade contexts-wurfl-<VERSION_BEFORE_0.2.0> sudo dnf versionlock add contexts-wurfl

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-2017-5962?

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

Is CVE-2017-5962 being exploited?

CVE-2017-5962 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-2017-5962 affect?

CVE-2017-5962 affects contexts wurfl. Severity is medium (CVSS 6.1). An issue was discovered in contexts_wurfl (for TYPO3) before 0.4.2. The vulnerability exists due to insufficient filtration of user-supplied data in the "force_ua" HTTP GET parameter passed to the "/contexts_wurfl/Library/wurfl-dbapi-1.4.4.

How urgent is CVE-2017-5962?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities · TYPO3 vulnerabilities

References

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