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Fencer Vulns
medium 5.4

CVE-2021-24634 json

Recipe Card Blocks < 2.8.3 - Contributor+ Stored Cross-Site Scripting

published 2021-09-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11546

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

The Recipe Card Blocks by WPZOOM WordPress plugin before 2.8.3 does not properly sanitise or escape some of the properties of the Recipe Card Block (such as ingredientsLayout, iconSet, steps, ingredients, recipeTitle, or settings), which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks.

Patch / fix

  • wpzoom recipe_card_blocks_for_gutenberg_&_elementor 2.8.3

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/a49c5a5b-57c0-4801-8bf1-cd3a05b12288 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

  • Unknown Recipe Card Blocks by WPZOOM

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.