CVE-2015-4704: Directory traversal vulnerability in the Download Zip Attachments plugin 1.0 for WordPress allows remote attac

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2015-4704 is a high-severity flaw (CVSS 7.5) affecting download zip attachments. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in the Download Zip Attachments plugin 1.0 for WordPress allows remote attackers to read arbitrary files via a .. (dot dot) in the File parameter to download.php.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	5.3% (top 7%)
CISA exploited list	No
Weakness	CWE-22
Published	2017-05-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: download zip attachments project

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

Am I affected?

Timeline

2017-05-23 04:29 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

download zip attachments project download zip attachments DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy download-zip-attachments || rpm -q download-zip-attachments || download-zip-attachments --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison download-zip-attachments sudo apt install download-zip-attachments=<VERSION_BEFORE_1.0> sudo apt-mark hold download-zip-attachments

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

dnf --showduplicates list download-zip-attachments sudo dnf downgrade download-zip-attachments-<VERSION_BEFORE_1.0> sudo dnf versionlock add download-zip-attachments

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-2015-4704?

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

Is CVE-2015-4704 being exploited?

CVE-2015-4704 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-2015-4704 affect?

CVE-2015-4704 affects download zip attachments. Severity is high (CVSS 7.5). Directory traversal vulnerability in the Download Zip Attachments plugin 1.0 for WordPress allows remote attackers to read arbitrary files via a .. (dot dot) in the File parameter to download.php.

How urgent is CVE-2015-4704?

Priority 59/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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