5.5

CVE-2021-36849: rené hermenau social media share buttons | mashshare (wordpress plugin) Cross-site Scripting

CVSS: 5.5v3.1MediumModified
Published 20-07-2022Last modified 28-04-2026
Open JSON

Vulnerability summary

CVE-2021-36849 is a medium (CVSS 5.5) Cross-site Scripting vulnerability in rené hermenau social media share buttons | mashshare (wordpress plugin). EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (wordfence)
EPSS score
0.52%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-07-2022
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

Description

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share Buttons plugin <= 3.8.1 at WordPress.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.01 pp

From 0.51% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

René hermenau1 product
Social_media_share_buttons_project1 product
Wordpress1 product
  • mashsharer≤ 3.8.1 (fixed in 3.8.2)

3 vendors · 3 products

References

3 links