CVE-2017-5493

high

Published 2017-01-15 · Modified 2026-05-13

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CVSS v3

7.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.5

Description

wp-includes/ms-functions.php in the Multisite WordPress API in WordPress before 4.7.1 does not properly choose random numbers for keys, which makes it easier for remote attackers to bypass intended access restrictions via a crafted (1) site signup or (2) user signup.

Predictions

Exploit likelihood

83%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
arch		fixed	`4.7.1-1`
debian	bookworm	fixed	`4.7.1+dfsg-1`
debian	bullseye	fixed	`4.7.1+dfsg-1`
debian	forky	fixed	`4.7.1+dfsg-1`
debian	sid	fixed	`4.7.1+dfsg-1`
debian	trixie	fixed	`4.7.1+dfsg-1`

Application impact

Vendor	Product	Versions	Fixed
wordpress	wordpress	`{"endIncluding":"4.7"}`

References

CWEs

CWE-338

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.