CVE-2015-1621: Cross-site scripting (XSS) vulnerability in the Webform prepopulate block module before 7.x-3.1 for Drupal all

Q: How do I fix CVE-2015-1621?

webform prepopulate block: upgrade to newer than 7.x-3.0. Exact commands for each OS are on this page.

Q: Is CVE-2015-1621 being exploited?

CVE-2015-1621 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-2015-1621 affect?

CVE-2015-1621 affects webform prepopulate block. Severity is low (CVSS 3.5). Cross-site scripting (XSS) vulnerability in the Webform prepopulate block module before 7.x-3.1 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Q: How urgent is CVE-2015-1621?

Priority 27/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADE

CVE-2015-1621 is a low-severity flaw (CVSS 3.5) affecting webform prepopulate block. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the Webform prepopulate block module before 7.x-3.1 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: webform prepopulate block project

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

Am I affected?

Timeline

2015-02-17 15:59 UTCPublished CVE record published
2026-06-17 00:22 UTCUpdated Record last modified

webform prepopulate block project webform prepopulate block UPGRADE

Affected: <= 7.x-3.0

Fixed in: newer than 7.x-3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy webform-prepopulate-block || rpm -q webform-prepopulate-block || webform-prepopulate-block --version

2. UPGRADE to newer than 7.x-3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade webform-prepopulate-block

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade webform-prepopulate-block

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-2015-1621?

webform prepopulate block: upgrade to newer than 7.x-3.0. Exact commands for each OS are on this page.

Is CVE-2015-1621 being exploited?

CVE-2015-1621 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-2015-1621 affect?

CVE-2015-1621 affects webform prepopulate block. Severity is low (CVSS 3.5). Cross-site scripting (XSS) vulnerability in the Webform prepopulate block module before 7.x-3.1 for Drupal allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2015-1621?

Priority 27/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

References

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