CVE-2013-5725: The Metaclassy Byword app 2.x before 2.1 for iOS does not require confirmation of Replace file actions, which

Routine

MEDIUM 5.0DOWNGRADE

CVE-2013-5725 is a medium-severity flaw (CVSS 5.0) affecting byword. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Metaclassy Byword app 2.x before 2.1 for iOS does not require confirmation of Replace file actions, which allows remote attackers to overwrite arbitrary files via the name and text parameters in a byword://replace URL.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-264
Published	2013-10-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: metaclassy

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-10-01 00:55 UTCPublished CVE record published
2026-06-16 23:59 UTCUpdated Record last modified

metaclassy byword DOWNGRADE

Affected: 2.0.0 · 2.0.1 · 2.0.2 · 2.0.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison byword sudo apt install byword=<VERSION_BEFORE_2.0.0> sudo apt-mark hold byword

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

dnf --showduplicates list byword sudo dnf downgrade byword-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add byword

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-2013-5725?

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

Is CVE-2013-5725 being exploited?

CVE-2013-5725 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-2013-5725 affect?

CVE-2013-5725 affects byword. Severity is medium (CVSS 5.0). The Metaclassy Byword app 2.x before 2.1 for iOS does not require confirmation of Replace file actions, which allows remote attackers to overwrite arbitrary files via the name and text parameters in a byword://replace URL.

How urgent is CVE-2013-5725?

Priority 39/100. Public exploit reference

Software pages

iOS vulnerabilities

References

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